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A Index of Mineral Species

This alphabetical listing of A minerals include synonyms of accepted mineral names, pronunciation of that name, name origins, and locality information. Visit our expanded selection of mineral pictures.

Ab0 *  (see Anorthite ) Ab100 *  (see Albite ) Ab20 *  (see Bytownite ) Ab40 *  (see Labradorite ) Ab60 *  (see Andesine ) Ab80 *  (see Oligoclase ) Abelsonite     Ni++C31H32N4 NAME ORIGIN: Named after Philip H. Abelson, president, the Carnegie Institution, Washington, DC, a pioneer in organic geochemistry. Abenakiite-(Ce)     Na26REE6(SiO3)6(PO4)6(CO3)6(S++++O2)O NAME ORIGIN: For the Abenaki Indian tribe, which inhabited the area around Mont Saint-Hilaire. Abernathyite     K(UO2)(AsO4)•4(H2O) NAME ORIGIN: Named for Jess Abernathy, Moab, Utah, mine owner who found the first specimens. Abhurite     Sn3O(OH)2Cl2 NAME ORIGIN: Named for its locality. LOCALITY: Sharm Abhur, a cove in the Red Sea, Saudi Arabia, Jiddah, Red Sea Abramovite !     Pb2SnInBiS7 NAME ORIGIN: Named for Dmitry Abramov, Russian mineralogist. Abrazite *  (see Gismondine ) See Also: GOOGLE, Athena, MinDAT, MinMax Abrazite *  (see Phillipsite-Ca ) See Also: GOOGLE, Athena, MinDAT, MinMax Abrazite *  (see Phillipsite-K ) See Also: GOOGLE, Athena, MinDAT, MinMax Abrazite *  (see Phillipsite-Na ) See Also: GOOGLE, Athena, MinDAT, MinMax Abswurmbachite     Cu++Mn+++6SiO12 NAME ORIGIN: Named for Irmgard Abs-Wurmbach (1938-), German mineralogist. Abukumalite *  (see Britholite-(Y) ) See Also: GOOGLE, Athena, MinDAT, MinMax Acadialite *  (see Chabazite-Ca ) See Also: GOOGLE, Athena, MinDAT, MinMax Acanthite     Ag2S NAME ORIGIN: From the Greek, akanta, meaning "arrow." After the Latin, argentum, meaning "silver". Argentite is stable above 179 C. Acanthite is stable below 179 deg. C. Acetamide     CO(CH3)(NH2) NAME ORIGIN: For ACETic acid and AMIDE, for ammonia in its composition. Achavalite     FeSe NAME ORIGIN: Named for L. Achaval. Achiardite *  (see Dachiardite-Ca ) See Also: GOOGLE, Athena, MinDAT, MinMax Achiardite *  (see Dachiardite-Na ) See Also: GOOGLE, Athena, MinDAT, MinMax Achroite - colorless  (see Elbaite ) See Also: GOOGLE, Athena, MinDAT, MinMax Achtarandite - pseudomorph, probably after mayenite.  (see Mayenite ) See Also: GOOGLE, Athena, MinDAT, MinMax Acicular iron ore *  (see Goethite ) See Also: GOOGLE, Athena, MinDAT, MinMax Acmite *  (see Aegirine ) See Also: GOOGLE, Athena, MinDAT, MinMax Actinolite     Ca2(Mg,Fe++)5Si8O22(OH)2 NAME ORIGIN: From the Greek, aktinos, meaning "ray" in allusion to actinolite's fibrous nature. Acuminite     SrAlF4(OH)•(H2O) NAME ORIGIN: From the Latin acuminis, sharp point, for spear head, the characteristic shape of the crystals. Adamite     Zn2(AsO4)(OH) NAME ORIGIN: Named after the French mineralogist Gilbert Joseph Adam (1795-1881). Adamsite-(Y) !     NaY(CO3)2•6(H2O) NAME ORIGIN: Named for Professor Frank Dawson Adams (1859-1942) of McGill University, Montreal, Quebec. Adelite     CaMg(AsO4)(OH) NAME ORIGIN: From the Greek for indistinct, for its occurrence as massive. Adipite *  (see Chabazite-Ca ) See Also: GOOGLE, Athena, MinDAT, MinMax Admontite     MgB6O10•7(H2O) NAME ORIGIN: For Admont, Austria, near the original locality. LOCALITY: Austria, Schidmaur, near Admont Adranosite     (NH4)4NaAl2(SO4)4Cl(OH)2 NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Adularia *  (see Orthoclase ) See Also: GOOGLE, Athena, MinDAT, MinMax Aedelforsite *  (see Laumontite ) See Also: GOOGLE, Athena, MinDAT, MinMax Aedelforsite *  (see Stilbite-Ca ) See Also: GOOGLE, Athena, MinDAT, MinMax Aedelforsite *  (see Stilbite-Na ) See Also: GOOGLE, Athena, MinDAT, MinMax Aedelite *  (see Natrolite ) See Also: GOOGLE, Athena, MinDAT, MinMax Aegirine     NaFe+++Si2O6 NAME ORIGIN: Named after the Teutonic god of the sea. Acmite is from the Greek "point" in allusion to the pointed crystals. Aegirine-augite *     (Ca,Na)(Mg,Fe++,Fe+++)[Si2O6] NAME ORIGIN: Name derived from its intermediate pyroxene composition. This is not an end-member species. Aenigmatite     (Na,Ca)4(Fe++,Ti,Mg)12Si12O40 NAME ORIGIN: From the Greek for riddle, apparently an allusion to its (formerly) uncertain chemical composition. Aerinite     (Ca,Na)6FeAl(Fe++,Mg)2(Al,Mg)6[Si12O36(OH)12H][(H2O)12(CO3)] NAME ORIGIN: Named from the Greek root "aer-", alluding to atmosphere or sky and hence the color, sky blue. Aerugite     ([ ],Ni)9(AsO4)2(AsO6) (?) NAME ORIGIN: Named from the Greek for 'copper rust', in allusion to its appearance. Aeschynite-(Ce)     (Ce,Ca,Fe)(Ti,Nb)2(O,OH)6 NAME ORIGIN: Named for its composition and from the Greek for "shame," in allusion to the inability of chemists, at the time of its discovery, to separate some of its constituents. Aeschynite-(Ce) *  (see Nioboaeschynite-(Ce) ) See Also: GOOGLE, Athena, MinDAT, MinMax Aeschynite-(Nd)     (Nd,Ce)(Ti,Nb)2(O,OH)6 NAME ORIGIN: Named for its composition and from the Greek for "shame," in allusion to the inability of chemists, at the time of its discovery, to separate some of its constituents. Aeschynite-(Y)     (Y,Ca,Fe)(Ti,Nb)2(O,OH)6 NAME ORIGIN: Named for its composition and from the Greek for "shame," in allusion to the inability of chemists, at the time of its discovery, to separate some of its constituents. Afghanite     (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3•(H2O) NAME ORIGIN: From its locality. LOCALITY: Sar-e-Sang luzurite deposit in Afghanistan. Afwillite     Ca3Si2O4(OH)6 NAME ORIGIN: For Alpheus Fuller Williams (1874-1953), General Manager, DeBeers Consolidated Mines, Kimberley, South Africa. Agardite-(Ca) !     CaCu6(AsO4)3(OH)6•3(H2O) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agardite-(Ce) !     (Ce,Ca)Cu6(AsO4)3(OH)6•3(H2O) NAME ORIGIN: Named as the Ce-dominant analog of agardite-(La) and agardite-(Y). Agardite-(Dy) !     (Dy,La,Ca)Cu6(AsO4)3(OH)6•3(H2O) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agardite-(La) !     (La,Ca)Cu6(AsO4)3(OH)6•3(H2O) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agardite-(Nd) !     (Pb,Nd,Y,La,Ca)Cu6(AsO4)3(OH)6•3(H2O) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agardite-(Y)     (Y,Ca)Cu6(AsO4)3(OH)6•3(H2O) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agate - banded variety of chaledony  (see Quartz ) See Also: GOOGLE, Athena, MinDAT, MinMax Agnolite *  (see Inesite ) See Also: GOOGLE, Athena, MinDAT, MinMax Agrellite     NaCa2Si4O10F NAME ORIGIN: Named for Stuart O. Agrell, British mineralogist, Cambridge University. Agrinierite     (K2,Ca,Sr)U3O10•4(H2O) NAME ORIGIN: Named for Henri Agrinier (1928-1971), an engineer in the Mineralogy Laboratory if the French Atomic Energy Commission, Paris, France. Aguilarite     Ag4SeS NAME ORIGIN: Named for Ponciano Aguilar (1853-1935), superintendent of the San Carlos mine, Guanajuato, where the mineral was found. Aheylite     (Fe++,Zn)Al6(PO4)4(OH)8•4(H2O) NAME ORIGIN: Named for Allen V. Heyl (1918-), economic geologist, U. S. Geological Survey. Ahlfeldite     (Ni,Co)SeO3•2(H2O) NAME ORIGIN: Named for Federico Ahlfeld (1892-192), German-Bolivian geologist and mineralogist who studied Bolivian minerals. Aikinite     PbCuBiS3 NAME ORIGIN: For Dr. Arthur Aikin (1773-1854), a founder and long-time Secretary of the Geological Society of London, England. Aiolosite !     Na4Bi(SO4)3Cl NAME ORIGIN: Named after the locality. LOCALITY: La Fossa crater, Vulcano, Aeolian Islands, Italy Ajoite     (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O) NAME ORIGIN: Named for the locality. LOCALITY: New Cornelia mine, Ajo, Pima County,, Arizona, USA. Akaganeite     Fe+++(O,OH,Cl) NAME ORIGIN: Named for the locality. LOCALITY: Akagane mine, Iwate Prefecture, Japan. Akatoreite     (Mn++,Fe++)9Al2Si8O24(OH)8 NAME ORIGIN: Named for the locality. LOCALITY: In New Zealand, three km south of Akatore Creek, east Otago, South Island. From Norberg, Sweden. Akdalaite     5(Al2O3)•(H2O) NAME ORIGIN: Named for the Kazakh name for the locality. LOCALITY: Solvech fluorite deposit, Karaganda region, Kazakhstan, Akdala. Akermanite     Ca2MgSi2O7 NAME ORIGIN: For Anders Richard Akerman (1837-1922), Swedish metallurgist. Akhtenskite     Mn++++O2 NAME ORIGIN: For the Akhtensk deposit, Russia, where it was first noted. Akimotoite !     (Mg,Fe)SiO3 NAME ORIGIN: Named after Syun-iti Akimoto (b. 1925), of the Institute of Geophysics and Solid State Physics, University of Tokyo, specialist in high-pressure research, especially on phase relationship Akrochordite     Mn4Mg(AsO4)2(OH)4•4(H2O) NAME ORIGIN: From the Greek for wart, for its typical habit. Aksaite     MgB6O7(OH)6•2(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Chelkar, Ak-Sai Valley, Uralsk district, Kazakhstan. Aktashite     Cu6Hg3As4S12 NAME ORIGIN: Named after the locality. LOCALITY: Gal-Kyaya deposit, Yakutia, and Aktash deposit, Altai Mts., Russia. Akyltetrahrdrophenanthrene *  (see Simonellite ) See Also: GOOGLE, Athena, MinDAT, MinMax Alabandite     MnS NAME ORIGIN: Named after its locality Alabanda, Turkey. LOCALITY: Turkey, Aydin, Alabanda Alabaster *  (see Gypsum ) See Also: GOOGLE, Athena, MinDAT, MinMax Alacranite     As8S9 NAME ORIGIN: For the occurrence in the Alacran deposit, Chile. Alamosite     PbSiO3 NAME ORIGIN: For the Mexican type locality at Alamos. LOCALITY: From Mexico, in Sonora, at Alamos, and the San Pascual mine, Zimpan, Hidalgo. In the USA, from Arizona, in the Mammoth-St. Anthony mine, at Tiger, Pinal Co., the Lucky Cuss mine, Tombstone, Alarsite !     AlAsO4 NAME ORIGIN: Named from its chemical composition of Aluminum and Arsenic. Albite     NaAlSi3O8 NAME ORIGIN: From the Latin, albus, in allusion to the common color. Albrechtschraufite     Ca4Mg(UO2)2(CO3)6F2•17(H2O) NAME ORIGIN: Named for Albrecht Schrauf (1837-1897), Austrian crystallographer, University of Vienna, Vienna, Austria. Aldermanite     Mg5Al12(PO4)8(OH)22•32(H2O) NAME ORIGIN: Named for Arthur Richard Alderman (1901-1980), Mineralogist and petrologist, University of Adelaide, SA, Australia. Aldzhanite *     CaMgB2O4Cl•7(H2O) (?) NAME ORIGIN: Not given in abstract. Aleksite     PbBi2Te2S2 (?) NAME ORIGIN: Named after the locality. LOCALITY: In the Alekseev mine, Sutemskii region, Stanovoi Range, Russia. Alexandrite - green  (see Chrysoberyl ) See Also: GOOGLE, Athena, MinDAT, MinMax Alflarsenite     NaCa2Be3Si4O13(OH)•2H2O NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Alforsite     Ba5(PO4)3Cl NAME ORIGIN: To honor Dr. John T. Alfors (1930- ), geologist, California Division of Mines, for his work on the type locality. LOCALITY: From Big Creek and Rush Creek, Fresno Co., and on Trumbull Peak, near Incline, Marisopa Co., California, USA. Alfredstelznerite     Ca4(H2O)4 [B4O4(OH)6]4 {H2O}15 NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Algodonite     Cu6As NAME ORIGIN: Named for the locality. LOCALITY: Chile, Algodones silver mn, Coquimbo Aliettite     [Mg3Si4O10(OH)2](Ca0.5,Na)0.33(Al,Mg,Fe++)2-3(Si,Al)4O10(OH)2•n(H2O) NAME ORIGIN: Named for Andrea Alietti (1923-), clay mineralogist. Allabogdanite !     (Fe,Ni)2P NAME ORIGIN: Named for Alla Bogdanova, Geological Institute, Kola Science Centre of Russian Academy of Sciences. Allactite     Mn7(AsO4)2(OH)8 NAME ORIGIN: From the Greek, to change, a reference to the strong pleochroism. Allanite-(Ce)     (Ce,Ca,Y)2(Al,Fe+++)3(SiO4)3(OH) NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833). Allanite-(La) !     Ca(REE,Ca)Al2(Fe++,Fe+++)(SiO4)(Si2O7)O(OH) NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833) and the La content. Allanite-(Y)     (Y,Ce,Ca)2(Al,Fe+++)3(SiO4)3(OH) NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833). Allanpringite !     Fe3(PO4)2(OH)3•5H2O NAME ORIGIN: Named for Allan Pring, eminent Australian mineralogist. Allargentum     Ag1-xSbx(x=0.009-0.16) NAME ORIGIN: Named from the Greek for 'another' and the Latin 'argentum'. Alleghanyite     Mn5(SiO4)2(OH)2 NAME ORIGIN: Named after its locality. LOCALITY: Bald Knob, Alleghany Co., North Carolina, USA. Allemontite *  (see Stibarsen ) See Also: GOOGLE, Athena, MinDAT, MinMax Allendeite !     Sc4Zr3O12 NAME ORIGIN: Named for the locality. LOCALITY: Allende meteorite, Pueblito de Allende, Chihuahua, Mexico. Allochalcoselite !     Cu+Cu++5PbO2(SeO3)2Cl5 NAME ORIGIN: The name is compositional and is derived from the Greek, a???? ("different") + ?a???? ("copper") + se??'??("selenium"), to reflect the different valences and crystallographic behavior of Alloclasite     (Co,Fe)AsS NAME ORIGIN: From the Greek for "other", and "to break," because its cleavage was believed to be different from marcasite, which it resembles. Allophane     Al2O3•(SiO2)1.3-2•((H2O))2.5-3 NAME ORIGIN: From the Greek allos - "other" and phanos - "to appear" in allusion to its change when blowpiped. Alloriite !     Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O NAME ORIGIN: Named for Roberto Allori (1933*), Italian amateur mineralogist and collector, who found the mineral. Alluaivite     Na19(Ca,Mn++)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl•2(H2O) NAME ORIGIN: For its occurrence on Mt. Alluaiv, Kola Peninsula, Russia. Alluaudite     NaCaFe++(Mn,Fe++,Fe+++,Mg)2(PO4)3 NAME ORIGIN: Named for Francois Alluaud, mining engineer of Limoges, France, who discovered the mineral. Almagrerite *  (see Zincosite ) See Also: GOOGLE, Athena, MinDAT, MinMax Almandine     Fe++3Al2(SiO4)3 NAME ORIGIN: Named after its locality. LOCALITY: Alabanda in Asia Minor. Almandite *  (see Almandine ) See Also: GOOGLE, Athena, MinDAT, MinMax Almarudite !     K([ ],Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30] NAME ORIGIN: After the authors’ hosting and supporting institution, "Universität Wien", and is derived from the university’s proper name "ALma MAter RUDolphina". Almbosite ?     Fe++5Fe+++4V+++++4Si3O27 NAME ORIGIN: Named for the locality. LOCALITY: Almhiitte Bos, Trentino-Alto Adige, Italy. Almeraite - mixture of carnallite and halite.  (see Carnallite ) See Also: GOOGLE, Athena, MinDAT, MinMax Alpersite !     (Mg,Cu)SO4•7H2O NAME ORIGIN: Named after Charles N. Alpers, geochemist with the United States Geological Survey, who has made significant contributions to our understanding of the mineralogical controls of mine-water alpha vrendenbergite *  (see Iwakiite ) See Also: GOOGLE, Athena, MinDAT, MinMax Alsakharovite-Zn !     NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) NAME ORIGIN: Named for Aleksey S. Sakharov (1910-1996), Russian geologist who studied the Lovozero alkaline massif. Alstonite     BaCa(CO3)2 NAME ORIGIN: Named after the locality. LOCALITY: Brownley Hill lead mine, Alston, Cumberland and Fallowfield lead mine hear Hexham, Northcumberland, England. Altaite     PbTe NAME ORIGIN: Named after its locality. LOCALITY: Ziryanovsk in the Altai Mountains, Siberia. Althausite     Mg2(PO4)(OH,F,O) NAME ORIGIN: To honor Professor Egon Althaus (1933- ), Karlsruhe University, Karlsruhe, Germany. Althupite     ThAl(UO2)7(PO4)4(OH)5•15(H2O) NAME ORIGIN: For the major cations in the composition, Aluminum, Thorium, Uranium, Phosphorus. Altisite     Na3K6Ti2Al2Si8O26Cl3 NAME ORIGIN: Name for the elements Al, Ti, and Si in the composition. Altmarkite *  (see Leadamalgam ) See Also: GOOGLE, Athena, MinDAT, MinMax Altname - Remarks  (see RealName ) See Also: GOOGLE, Athena, MinDAT, MinMax Alum-(K)     KAl(SO4)2•12(H2O) NAME ORIGIN: Named for the element K and the Latin, alumen. Alum-(Na)     NaAl(SO4)2•12(H2O) NAME ORIGIN: Named for the composition. Aluminilite *  (see Alunite ) See Also: GOOGLE, Athena, MinDAT, MinMax Aluminite     Al2(SO4)(OH)4•7(H2O) NAME ORIGIN: Named after its chemical composition. Aluminium *  (see Aluminum ) See Also: GOOGLE, Athena, MinDAT, MinMax Alumino-magnesiohulsite - Renamed Aluminomagnesiohulsite by Mineralogical Record, v39 (2008), p131  (see Aluminomagnesiohulsite ) See Also: GOOGLE, Athena, MinDAT, MinMax Alumino-magnesiotaramite !     Na(CaNa)(Mg3Al2)(Si6Al2)O22(OH)2 NAME ORIGIN: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Aluminobarroisite !     [ ]CaNaMg3Al2(Si7Al)O22(OH)2 NAME ORIGIN: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Aluminoceladonite !     KAl(Mg,Fe++)[ ]Si4O10(OH)2 NAME ORIGIN: Named for the French celadon, (sea green), in allusion to its common color. Aluminocerite-(Ce) !     (Ce,REE,Ca)9(Al,Fe+++)(SiO4)3[SiO3(OH)]4(OH)3 NAME ORIGIN: Named as the Al-dominant analog of cerite-(Ce). Aluminocopiapite     Al2/3Fe+++4(SO4)6O(OH)2•20(H2O) NAME ORIGIN: Named for its content of aluminum and relation to the copiapite group. Aluminoferrobarroisite !     [ ]CaNa(Fe2+)3Al2(Si7Al)O22(OH)2 NAME ORIGIN: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Aluminoferrohornblende *  (see Ferrohornblende ) See Also: GOOGLE, Athena, MinDAT, MinMax Aluminoferrotschermakite !     [ ]Ca2(Fe2+)3Al2(Si6Al2)O22(OH)2 NAME ORIGIN: Named for its composition and for Gustav Tschermak von Sessenegg (1836-1927), Austrian mineralogist. Aluminokatophorite *  (see Katophorite ) See Also: GOOGLE, Athena, MinDAT, MinMax Aluminomagnesiohornblende *  (see Magnesiohornblende ) See Also: GOOGLE, Athena, MinDAT, MinMax Aluminomagnesiohulsite !     Mg2(Al,Mg,Sn)(BO3)O2 NAME ORIGIN: Named as the Al and Mg dominant member of the hulsite group. Aluminotaramite !     Na(CaNa)(Fe+++3Al2)(Si6Al2)O22(OH)2 NAME ORIGIN: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Aluminotschermakite *  (see Tschermakite ) See Also: GOOGLE, Athena, MinDAT, MinMax Aluminowinchite *  (see Winchite ) See Also: GOOGLE, Athena, MinDAT, MinMax Aluminum     Al NAME ORIGIN: From the Latin, alumen = "alum." Aluminum Sulfate *  (see Alunogen ) See Also: GOOGLE, Athena, MinDAT, MinMax Alumoakermanite !     (Ca,Na)2(Al,Mg,Fe++)(Si2O7) NAME ORIGIN: Named as the Al analog of akermanite. Alumohydrocalcite     CaAl2(CO3)2(OH)4•3(H2O) NAME ORIGIN: Named after its chemical composition. Alumoklyuchevskite     K3Cu3AlO2(SO4)4 NAME ORIGIN: Named as the aluminum dominant analog of klyuchevskite. Alumopharmacosiderite     KAl4(AsO4)3(OH)4•6•5(H2O) NAME ORIGIN: As the ALUMinum analog of "pharmacosiderite." Alumotantite     AlTaO4 NAME ORIGIN: For ALUMinum and TANTalum in the composition. Alumotungstite     (W,Al)(O,OH)3 (?) NAME ORIGIN: Named for the composition. Alunite     KAl3(SO4)2(OH)6 NAME ORIGIN: From the Latin alunit, meaning "alum." Alunogen     Al2(SO4)3•17(H2O) NAME ORIGIN: From the Latin alumen ="alum" and the Greek genos ="origin." Alushtite *  (see Tosudite ) See Also: GOOGLE, Athena, MinDAT, MinMax Alvanite     (Zn,Ni)Al4(VO3)2(OH)12•2(H2O) NAME ORIGIN: Named for the ALuminum and VANadium in the composition. Amakinite     (Fe++,Mg)(OH)2 NAME ORIGIN: Named for the Amakin Expedition, which prospected the Yakutain diamond deposits. Amalgam *     Ag2Hg3 NAME ORIGIN: Named for the Medieval Latin "amalgama" for a mercury-metal alloy, generally when the other metal is silver. Amarantite     Fe+++(SO4)(OH)•3(H2O) NAME ORIGIN: Named from the Greek for amaranth, an imaginary purplish red undying flower, for its color. Amarillite     NaFe+++(SO4)2•6(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Tierra Amarilla, southeast of Copiapo, Atacama, Chile Amazonstone - green  (see Microcline ) See Also: GOOGLE, Athena, MinDAT, MinMax Amber *     [C,H,O] NAME ORIGIN: The name is for the yellow-orange-brown color. Amblygonite     (Li,Na)Al(PO4)(F,OH) NAME ORIGIN: From the Greek amblys - "blunt" and goni - "angle." Ameghinite     NaB3O3(OH)4 NAME ORIGIN: Named for Carlos Ameghino (1865-1936) and Florentino Ameghino (1854-1911), both brothers and Argentine geologists. Amesite     Mg2Al(SiAl)O5(OH)4 NAME ORIGIN: Honors James Ames, a mine owner. Amethyst - purple  (see Quartz ) See Also: GOOGLE, Athena, MinDAT, MinMax Amianthus *  (see Parachrysotile ) See Also: GOOGLE, Athena, MinDAT, MinMax Amicite     K2Na2Al4Si4O16•5(H2O) NAME ORIGIN: To honor Giovan Battista, Amici (1786-1863), physicist, optician, and inventor of microscope optical elements. Aminoffite     Ca3Be2Si3O10(OH)2 NAME ORIGIN: Named for Gregori Aminoff (1993-1947), Swedish Mineralogist and crystallographer. Ammonia alum *  (see Tschermigite ) See Also: GOOGLE, Athena, MinDAT, MinMax Ammonian arcanite *  (see Arcanite ) See Also: GOOGLE, Athena, MinDAT, MinMax Ammonioalunite     (NH4)Al3(SO4)2(OH)6 NAME ORIGIN: Named for its composition (Ammonia, Al,). Ammonioborite     (NH4)2B10O16•5(H2O) NAME ORIGIN: Named for its composition, ammonium borate. Ammoniojarosite     (NH4)Fe+++3(SO4)2(OH)6 NAME ORIGIN: Named as the ammonium analog of jarosite. Ammonioleucite     (NH4,K)AlSi2O6 NAME ORIGIN: For "ammonia" in its chemical composition and its relation to "leucite." Ammonium hexachlorostannate *  (see Panichiite ) See Also: GOOGLE, Athena, MinDAT, MinMax Amosite *  (see Grunerite ) See Also: GOOGLE, Athena, MinDAT, MinMax Amphigene *  (see Leucite ) See Also: GOOGLE, Athena, MinDAT, MinMax Amstallite     CaAl(Si,Al)4O8(OH)4•((H2O),Cl) NAME ORIGIN: For the locality. LOCALITY: In the Amstall graphite quarry, Amstall, Austria. An0 *  (see Albite ) An100 *  (see Anorthite ) An20 *  (see Oligoclase ) An40 *  (see Andesine ) An60 *  (see Labradorite ) An80 *  (see Bytownite ) Analcidite *  (see Analcime ) See Also: GOOGLE, Athena, MinDAT, MinMax Analcime     NaAlSi2O6•(H2O) NAME ORIGIN: From the Greek word meaning weak, referring to a weak electrical charge developed on rubbing. Analcite *  (see Analcime ) See Also: GOOGLE, Athena, MinDAT, MinMax Analzim *  (see Analcime ) See Also: GOOGLE, Athena, MinDAT, MinMax Anandite     (Ba,K)(Fe++,Mg)3(Si,Al,Fe)4O10(S,OH)2 NAME ORIGIN: Named for Ananda Kentish Coomaraswamy (1877-1947), first director of the Mineral Survey of Ceylon (Sri Lanka). Anapaite     Ca2Fe++(PO4)2•4(H2O) NAME ORIGIN: For its discovery near Anapa, Russia. Anatase     TiO2 NAME ORIGIN: From the Greek, anatasis - "elongation." Ancylite-(Ce)     SrCe(CO3)2(OH)•(H2O) NAME ORIGIN: Named for the composition and from the Greek "curved," in allusion to the rounded and distorted character of the crystals. Ancylite-(La) !     Sr(La,Ce)(CO3)2(OH)•(H2O) NAME ORIGIN: Named for the composition and from the Greek "curved," in allusion to the rounded and distorted character of the crystals. Andalusite     Al2SiO5 = Al[6]Al[5]OSiO4 NAME ORIGIN: Named after its locality. LOCALITY: Andalucia (Spain), an early but now unimportant location. Andersonite     Na2Ca(UO2)(CO3)3•6(H2O) NAME ORIGIN: Named for Charles Alfred Anderson (1902-1990), U. S. Geological Survey. Andesine *     (Na,Ca)(Si,Al)4O8 NAME ORIGIN: Named after its locality. LOCALITY: Andes Mountains, South America. Andorite     PbAgSb3S6 NAME ORIGIN: For Andor von Semsey (1833-1923), a Hungarian nobleman, who was also an amateur mineralogist. Andradite     Ca3Fe+++2(SiO4)3 NAME ORIGIN: Andradite is named after the Brazilian mineralogist J. B. de Andrada e Silva (1763-1838). Demantoid is named after its adamantine luster. Andreasbergolite *  (see Harmotome ) See Also: GOOGLE, Athena, MinDAT, MinMax Andremeyerite     BaFe(Fe++,Mn,Mg)Si2O7 NAME ORIGIN: For Andre Marie Meyer (1890- ), Belgian geologist with the Geological Survey of the Belgian Congo, who first collected the mineral. Andreolite *  (see Harmotome ) See Also: GOOGLE, Athena, MinDAT, MinMax Andrewsite *  (see Chalcosiderite ) See Also: GOOGLE, Athena, MinDAT, MinMax Andrewsite *  (see Hentschelite ) See Also: GOOGLE, Athena, MinDAT, MinMax Andrewsite *  (see Rockbridgeite ) See Also: GOOGLE, Athena, MinDAT, MinMax Andreyivanovite !     FeCrP NAME ORIGIN: Named for Andrey Ivanov (b. 1937), Russian geochemist and mineralogist, who was one of the principal investigators for the Luna missions. Androsite *  (see Manganiandrosite-(La) ) See Also: GOOGLE, Athena, MinDAT, MinMax Androsite-(La) - Renamed to Manganiandrosite-(La) - Recommended nomenclature of epidote-group minerals, Eur. J. Mineral. 2006, 18, 5  (see Manganiandrosite-(La) ) See Also: GOOGLE, Athena, MinDAT, MinMax Anduoite     (Ru,Os)As2 NAME ORIGIN: For the Chinese locality at Anduo. LOCALITY: From Anduo, Tibet, China. Andyrobertsite !     KCdCu5(AsO4)4[As(OH)2O2]•2(H2O) NAME ORIGIN: Named after Andrew C. Roberts (1950-), mineralogist with the Geological Survey of Canada, specialist in documentation of new mineral species, in particular from low-temperature secondary Angastonite !     CaMgAl2(PO4)2(OH)4?7H2O NAME ORIGIN: Named for the locality. LOCALITY: Angaston, in the Mount Lofty Ranges, 100 km NNE of Adelaide, South Australia, Australia. Angelaite !     Cu2AgPbBiS4 NAME ORIGIN: Named for the locality. LOCALITY: Angela mine, district of Los Manantiales, Gastre, Chubut, Argentine. Angelellite     Fe+++4(AsO4)2O3 NAME ORIGIN: To honor Dr. Victorio Angelelli (1908- ), Argentinean mining geologist, Director of the Argentinean Geological Survey. Anglarite *  (see Berthierite ) See Also: GOOGLE, Athena, MinDAT, MinMax Anglesite     PbSO4 NAME ORIGIN: Named after the island of Anglesey (Wales, Great Britain). Anhydrite     CaSO4 NAME ORIGIN: From the Greek anhydros, meaning "waterless" (In contrast to Gypsum, which contains water). Anilite     Cu7S4 NAME ORIGIN: For the Ani mine, Japan. Ankangite     Ba(Ti,V+++,Cr+++)8O16 NAME ORIGIN: Named for the locality. LOCALITY: Shiti Barite deposit, Ankang County, Shaanxi Provice, China. Ankerite     Ca(Fe++,Mg,Mn)(CO3)2 NAME ORIGIN: Named after the Styrian (Austrian) mineralogist, Mathias Joseph Anker (1771-1843). Ankinovichite !     (Ni,Zn)Al4(VO3)2(OH)12(H2O)2.5 NAME ORIGIN: Named for Ekaterina Alexandrovina Ankinovich (1911-1991) and her husband Stepan Gerasimovitch Ankinovich (1912-1985). Russian mineralogist and geologist. Ankoleite *  (see Meta-ankoleite ) See Also: GOOGLE, Athena, MinDAT, MinMax Annabergite     Ni3(AsO4)2•8(H2O) NAME ORIGIN: Named after its locality. LOCALITY: Annaberg, Germany. Annite     KFe++3AlSi3O10(OH,F)2 NAME ORIGIN: For the first noted occurrence at Cape Ann, Massachusetts, USA. Anorthite     CaAl2Si2O8 NAME ORIGIN: From the Greek, an + orthos, "not upright" in allusion to the oblique crystals. Anorthoclase     (Na,K)AlSi3O8 NAME ORIGIN: From the Greek for "oblique" and "fracture," descriptive of the cleavage Anorthominasragrite !     V++++O(SO4)(H2O)5 NAME ORIGIN: Named for as the triclinic polymorph of minasragrite. Ansermetite !     MnV2O6•4(H2O) NAME ORIGIN: Named for Stefan Ansermet (1964-), Swiss mineralogist. Antarcticite     CaCl2•6(H2O) NAME ORIGIN: Named after the continent of Antarctica. Anthoinite     AlWO3(OH)3 NAME ORIGIN: Named for Raymond Anthoine (1888-1971), Belgian mining engineer, who wrote on prospecting of alluvial deposits. Anthonyite     Cu(OH,Cl)2•3(H2O) NAME ORIGIN: Named for John W. Anthony (1920-1992), mineralogist, University of Arizona. Anthophyllite     [ ]Mg7Si8O22(OH)2 NAME ORIGIN: From the Latin anthophyllum - "clove" in allusion to the color. Anthraquinone *  (see Hoelite ) See Also: GOOGLE, Athena, MinDAT, MinMax Antiedrite *  (see Edingtonite ) See Also: GOOGLE, Athena, MinDAT, MinMax Antigorite     (Mg,Fe++)3Si2O5(OH)4 NAME ORIGIN: Named after its locality. From the Latin, serpens - "snake." LOCALITY: Antigorio, Italy Antimonite *  (see Stibnite ) See Also: GOOGLE, Athena, MinDAT, MinMax Antimonpearceite     [Ag9CuS4] [(Ag,Cu)6(Sb,As)2S7] NAME ORIGIN: For its compositional relationship to pearceite. Antimonselite     Sb2Se3 NAME ORIGIN: Names in 1993 for the composition. Antimonsilver *  (see Dyscrasite ) See Also: GOOGLE, Athena, MinDAT, MinMax Antimony     Sb NAME ORIGIN: From the Arabic, al-uthmud, to Medieval Latin, antimonium; originally applied to stibnite, the sulfide of antimony. Antimony bloom *  (see Valentinite ) See Also: GOOGLE, Athena, MinDAT, MinMax Antimony Glance *  (see Stibnite ) See Also: GOOGLE, Athena, MinDAT, MinMax Antimony ochre *  (see Romeite ) See Also: GOOGLE, Athena, MinDAT, MinMax Antitaenite *     gamma-Fe3Ni NAME ORIGIN: Named for its opposite anti-ferromagnetism in contrast to the ferromagnetism of taenite. Antitaenite *  (see Taenite ) See Also: GOOGLE, Athena, MinDAT, MinMax Antlerite     Cu3(SO4)(OH)4 NAME ORIGIN: Named after its locality. LOCALITY: Antler mine, Mojave Co., Arizona. Anyolite - green  (see Zoisite ) See Also: GOOGLE, Athena, MinDAT, MinMax Anyuiite     Au(Pb,Sb)2 NAME ORIGIN: Named in 1989 for the locality. LOCALITY: Bolshoi Anyui R., Kolyma region, Russia. Apachite     Cu9Si10O29•11(H2O) NAME ORIGIN: Named for the Apache Indians, whose reservation is near the locality. LOCALITY: Christmas Mine, Gila, Arizona, USA. Apatite *     Ca5(PO4)3(OH,F,Cl) NAME ORIGIN: Named in 1788 from the Greek apatao - "I am misleading." Apatite *  (see Apatite-(CaCl) ) See Also: GOOGLE, Athena, MinDAT, MinMax Apatite *  (see Apatite-(CaF) ) See Also: GOOGLE, Athena, MinDAT, MinMax Apatite *  (see Apatite-(CaOH) ) See Also: GOOGLE, Athena, MinDAT, MinMax Apatite *  (see Apatite-(SrOH) ) See Also: GOOGLE, Athena, MinDAT, MinMax Apatite *  (see Carbonate-fluorapatite ) See Also: GOOGLE, Athena, MinDAT, MinMax Apatite *  (see Carbonate-hydroxylapatite ) See Also: GOOGLE, Athena, MinDAT, MinMax Apatite-(CaCl)     Ca5(PO4)3Cl NAME ORIGIN: Named as the chlorine end-member and from the Greek apatao - "I am misleading." Apatite-(CaF)     Ca5(PO4)3F NAME ORIGIN: Named as the fluorine end-member and from the Greek apatao - "I am misleading." Apatite-(CaOH)     Ca5(PO4)3(OH) NAME ORIGIN: Named as the hydroxyl end-member and from the Greek apatao - "I am misleading." Apatite-(CaOH)-M !     (Ca,Na)5[(P,S)O4]3(OH,Cl) NAME ORIGIN: Named as the monoclinic analog of hyroxylapatite. Apatite-(SrOH)     (Sr,Ca)5(PO4)3(F,OH) NAME ORIGIN: Named for the composition and resemblance to the apatites. Aphthalose *  (see Aphthitalite ) See Also: GOOGLE, Athena, MinDAT, MinMax Aphthitalite     (K,Na)3Na(SO4)2 NAME ORIGIN: Named from the Greek for "unalterable" and "salt" in allusion to its stability in air. Apjohnite     MnAl2(SO4)4•22(H2O) NAME ORIGIN: Named for James Apjohn (1796-1886), Professor of Chemistry and Mineralogy, Trinity College, Dublin, Ireland. Aplowite     (Co,Mn,Ni)SO4•4(H2O) NAME ORIGIN: Named for Albert Peter Low (1861-1942), Canadian geologist, former Director of the Geological Survey of Canada. Apoanalcite *  (see Natrolite ) See Also: GOOGLE, Athena, MinDAT, MinMax Apophyllite *     KCa4(Si4O10)2F•8(H2O) NAME ORIGIN: Named in 1800 from the Greek apophylliso - "it flakes off." Apophyllite-(KF)     (K,Na)Ca4Si8O20(F,OH)•8(H2O) NAME ORIGIN: From the Greek apophylliso - "it flakes off." and the composition containing fluorine; Apophyllite-(KOH)     KCa4Si8O20(OH,F)•8(H2O) NAME ORIGIN: From the Greek apophylliso - "it flakes off" and the predominant hydroxyl anion. Apophyllite-(NaF)     NaCa4Si8O20F•8(H2O) NAME ORIGIN: From the Greek apophylliso - "it flakes off" and the composition. Apuanite     Fe++Fe+++4Sb+++4O12S NAME ORIGIN: Named for the locality. LOCALITY: Buca della Vena mine, northeast of Stazzema, Apuan Alps, Tuscany, Italy. Aqualite !     (H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Aquamarine - Blue varitey  (see Beryl ) See Also: GOOGLE, Athena, MinDAT, MinMax Aragonite     CaCO3 NAME ORIGIN: Named after its locality. LOCALITY: Aragon (Spain). Arakiite !     (Zn,Mn++)(Mn++,Mg)12(Fe+++,Al)2(AsO3)(AsO4)2(OH)23 NAME ORIGIN: Named for Dr. Takaharu Araki (1929-), University of Chicago, for his numerous crystal-structure contributions to the science of mineralogy. Aramayoite     Ag3Sb2(Sb,Bi)S6 NAME ORIGIN: Named for Felix Avelino Aramayo, former Managing Director of the Compagnie Aramayo de Mines en Bolivie. Arapovite !     (U,Th)(Ca,Na)2(K1-x[ ]x)Si8O20•H2O, x=0.5 NAME ORIGIN: Named for Yu. A. Arapov (1907-1988), a famous geologist and author of many works on the geochemistry, mineralogy and petrology of Middle Asia. Aravaipaite     Pb3AlF9•(H2O) NAME ORIGIN: Named for the Aravaipa mining district. Arcanite     K2SO4 NAME ORIGIN: Named from the Latin arcanum duplicatum, for double secret, a medieval alchemical name. Archerite     (K,NH4)H2PO4 NAME ORIGIN: Honors Dr. Michael Archer (1945- ), Curator of Mammals, Queensland Museum, Brisbane, Australia, who discovered the first specimens. Arctite     Na2Ca4(PO4)3F NAME ORIGIN: Named for the arctic region where it was found. Arcubisite     Ag6CuBiS4 NAME ORIGIN: Named for the composition (ARgentum, CUprum, and BISmuth). Ardaite     Pb19Sb13S35Cl7 NAME ORIGIN: Named for the locality. LOCALITY: Madjarovo, Arda River, Bulgaria. Ardealite     Ca2(SO4)(HPO4)•4(H2O) NAME ORIGIN: From "Ardeal," the old Romanian name for Transylvania. Ardennite *  (see Ardennite-(As) ) See Also: GOOGLE, Athena, MinDAT, MinMax Ardennite-(As)     (Mn++,Ca,Mg)4(Al,Mg,Fe)6(SiO4)2(Si3O10)(AsO4,VO4)(OH)6 NAME ORIGIN: After the locality. Renamed to ardennite-(As) with the discovery of ardennite-(V). LOCALITY: Salmchateau in the Ardennes Mountains, Belgium. Ardennite-(V) !     Mn++4[Al4(Mg,Al,Fe+++,Mn+++)2][Si5(V,Si)]O22(OH)6 NAME ORIGIN: Named as the vanadium analogue of ardennite (ardennite-(As). Arduinite *  (see Mordenite ) See Also: GOOGLE, Athena, MinDAT, MinMax Arfvedsonite     NaNa2(Fe++4Fe+++)Si8O22(OH)2 NAME ORIGIN: Named after the Swedish chemist, J. A. Arfvedson (1792-1841). Argentite *     Ag2S NAME ORIGIN: After the Latin, argentum, meaning "silver". From the Greek, akanta, meaning "arrow." Argentite is stable above 179 C. Acanthite is stable below 179 C. Argentojarosite     AgFe+++3(SO4)2(OH)6 NAME ORIGIN: Named for the silver content and relationship to jarosite. Argentopentlandite     Ag(Fe,Ni)8S8 NAME ORIGIN: For the similarity in composition to pentlandite. Argentopyrite     AgFe2S3 NAME ORIGIN: For its composition and physical similarity to pyrite. Argentotennantite     (Ag,Cu)10(Zn,Fe)2(As,Sb)4S13 NAME ORIGIN: For the chemical composition and by analogy to tennantite. Argutite     GeO2 NAME ORIGIN: Named for the locality. LOCALITY: From the Argut deposit, central Pyrenees, Haute-Garonne, France. Argyrodite     Ag8GeS6 NAME ORIGIN: For the Greek for "silver-containing." Arhbarite     Cu2Mg(AsO4)(OH)3 NAME ORIGIN: Named for the locality. LOCALITY: Arhbar mine, Bou-Azzer, Morocco. Aricite *  (see Gismondine ) See Also: GOOGLE, Athena, MinDAT, MinMax Aristarainite     Na2MgB12O20•8(H2O) NAME ORIGIN: Named for Lorenzo Francisco Aristarain (1926- ), Argentine mineralogist specializing in borate deposits, La Plata University, Buenos Aires, Argentina. Arizonite *  (see Pseudorutile ) See Also: GOOGLE, Athena, MinDAT, MinMax Arkelite - Tazheranite, name originally used for synthetic material.  (see Tazheranite ) See Also: GOOGLE, Athena, MinDAT, MinMax Armalcolite     (Mg,Fe++)Ti2O5 NAME ORIGIN: Named after the three astronauts of Apollo 11: Neil A. ARMstrong, Edwin E. "Buzz" ALdrin, and Michael COLlins. Armangite     Mn26As+++18O50(OH)4(CO3) NAME ORIGIN: Named for Arsenic and MANGanese in the composition. Armbrusterite !     K5Na6Mn+++Mn++14[Si9O22]4(OH)10•4H2O NAME ORIGIN: Named for Thomas Armbruster (b. 1950; University of Berne) for his outstanding contribution to structural mineralogy and crystallography, especially to the study of Mn-rich minerals. Armenite     BaCa2Al6Si9O30•2(H2O) NAME ORIGIN: The name origin for Armenite is the type locality. LOCALITY: Armen Mine, Kongsberg, Norway. Armstrongite     CaZrSi6O15•3(H2O) NAME ORIGIN: Named for Neil Alden Armstrong, (1930-), American astronaut, first human being on the moon's surface, Apollo 11 Lunar Mission. Arnhemite *     (K,Na)2Mg2(P2O7)•5(H2O) NAME ORIGIN: Named after it's locality. LOCALITY: Arnhem Cave, Namibia. Arrojadite !     KNa4CaMn++4Fe++10Al(PO4)12(OH,F)2 NAME ORIGIN: To honor Miguel Arrojado Ribeiro Lisboa (1872-1932), Brazilian geologist. Arrojadite {1925) is renamed arrojadite-(KFe) and arrojadite becomes the group name. Arrojadite-(BaFe) !     (Ba,K,Pb)Na3(Ca,Sr)(Fe++,Mg,Mn)14Al(PO4)11(PO3OH)(OH,F)2 NAME ORIGIN: Originally for Pietro Sigismund (1874-1962), renamed arrojadite-(BaFe) in 2005 by the IMA. Arrojadite-(BaNa) !     BaFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(KFe) !     KNa2CaNa2(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(KNa) !     KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(NaFe) !     NaNa2CaNa2(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(PbFe) !     PbFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(SrFe) !     SrFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arsenbrackebuschite     Pb2(Fe++,Zn)(AsO4)2•(H2O) NAME ORIGIN: As the arsenate analog of "brackebuschite." Arsendescloizite     PbZn(AsO4)(OH) NAME ORIGIN: As the arsenate analog of "descloizite." Arsenic     As NAME ORIGIN: From the Greek, Arsenikon, a name originally applied to the mineral orpiment. Arsenical nickel *  (see Nickeline ) See Also: GOOGLE, Athena, MinDAT, MinMax Arsenical pyrite *  (see Arsenopyrite ) See Also: GOOGLE, Athena, MinDAT, MinMax Arseniodialyte *  (see Hausmannite ) See Also: GOOGLE, Athena, MinDAT, MinMax Arseniopleite     (Ca,Na)(Na,Pb)Mn++(Mn++,Mg,Fe++)2(AsO4)3 NAME ORIGIN: Named from the Latin for the element As, and Greek for 'more' because it adds to the number of related minerals already described. Arseniosiderite     Ca2Fe+++3(AsO4)3O2•3(H2O) NAME ORIGIN: For essential "arsenic" in the composition, and "sideros," Greek for "iron." Arsenobismite ?     Bi2(AsO4)(OH)3 NAME ORIGIN: Named in 1916 for it's composition. Arsenoclasite     Mn5(AsO4)2(OH)4 NAME ORIGIN: Named from "arsenic" and the Greek for "breaking," for its excellent cleavage. Arsenocrandallite     (Ca,Sr)Al3[(As,P)O4]2(OH)5•(H2O) NAME ORIGIN: For "arsenic" in the composition, and relation to "crandallite." Arsenoflorencite-(Ce)     (Ce,La)Al3(AsO4)2(OH)6 NAME ORIGIN: Named as the arsenic analog of florencite and the dominant rare earth element, cerium. Arsenoflorencite-(La) *     (La,Sr)Al3(AsO4,SO4,PO4)2(OH)6 NAME ORIGIN: Named as the arsenic analog of florencite and the dominant rare earth element, Lanthanum. Arsenoflorencite-(Nd) *     (Nd,La,Ce,Ba)(Al,Fe+++)3(AsO4,PO4)2(OH)6 NAME ORIGIN: Named as the arsenic analog of florencite and the dominant rare earth element, Neodymium. Arsenogorceixite !     BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6 NAME ORIGIN: For its "arsenic" content and relation to "gorceixite." Arsenogoyazite     (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5•(H2O) NAME ORIGIN: Named for the chemical composition and it's relationship to goyazite. Arsenohauchecornite     Ni18Bi3AsS16 NAME ORIGIN: Alludes to its chemical relation to the hauchecornite group. Arsenolamprite     As NAME ORIGIN: Named for the composition and the Greek for brilliance, in allusion to its luster. Arsenolite     As2O3 NAME ORIGIN: For ARSENic in the composition. Arsenopalladinite     Pd8(As,Sb)3 NAME ORIGIN: Named for its composition. Arsenopyrite     FeAsS NAME ORIGIN: Named after the minerals chemical composition. Arsenopyromorphite *  (see Mimetite ) See Also: GOOGLE, Athena, MinDAT, MinMax Arsenosulvanite ?     Cu3(As,V)S4 NAME ORIGIN: Named for its chemical relationship to sulvanite. Arsenosulvanite *  (see Colusite ) See Also: GOOGLE, Athena, MinDAT, MinMax Arsenovanmeersscheite     U(OH)4[(UO2)3(AsO4)2(OH)2]•4H2O NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Arsenowaylandite *     BiAl3(AsO4)2(OH)6 NAME ORIGIN: Named as the arsenate analog of waylandite. Arsenpolybasite     [Ag9CuS4] [(Ag,Cu)6(As,Sb)2S7] NAME ORIGIN: For the chemical composition and close relationship to polybasite. Arsentsumebite     Pb2Cu(AsO4)(SO4)(OH) NAME ORIGIN: Named as the "arsenate" analog of "tsumebite." Arsenuranospathite     HAl(UO2)4(AsO4)4•40(H2O) NAME ORIGIN: As the "arsenate" analog of "uranospathite." Arsenuranylite     Ca(UO2)4(AsO4)2(OH)4•6(H2O) NAME ORIGIN: Named for its relationship to phosphuranylite as the end-member. Arthurite     CuFe+++2(AsO4,PO4,SO4)2(O,OH)2•4(H2O) NAME ORIGIN: Named for Sir Arthur Edward Ian Montagu Russell (1878-1964) and Arthur William Gerald Kingsbury (1906-1968) for their contributions to British mineralogy. Artinite     Mg2(CO3)(OH)2•3(H2O) NAME ORIGIN: Named after the Italian mineralogist, Ettore Artini (1866-1928), mineralogist at the University of Milan. Artroeite     PbAlF3(OH)2 NAME ORIGIN: For Dr. Arthur (Art) Roe (1912-1993). Artsmithite !     Hg+4Al(PO4)1.74(OH)1.78 NAME ORIGIN: Named for Arthur (Art) E. Smith (1935-), American petroleum geologist from Houston, Texas who collected the original sample. Arupite     (Ni,Fe++)3(PO4)2•8(H2O) NAME ORIGIN: To honor Hans Henning Arup (1928- ), Director of the Danish Corrosion Center, Copenhagen, Denmark. Arzakite     Hg3S2(Br,Cl)2 NAME ORIGIN: Named after it's locality. LOCALITY: Arzak mercury deposits, Tuva, Siberia, Russia. Arzrunite     Cu4Pb2SO4(OH)4Cl6•2(H2O) NAME ORIGIN: Named after Andreas Arzruni (1847-1898), German mineralogist, University of Aachen. Asbecasite     Ca3(Ti,Sn)As+++6Si2Be2O20 NAME ORIGIN: The name origin for Asbecasite is the main elements: As,Be,Ca,Si. Asbestos *  (see Chrysotile ) See Also: GOOGLE, Athena, MinDAT, MinMax Asbestos *  (see Clinochrysotile ) See Also: GOOGLE, Athena, MinDAT, MinMax Asbestos *  (see Orthochrysotile ) See Also: GOOGLE, Athena, MinDAT, MinMax Asbestos *  (see Parachrysotile ) See Also: GOOGLE, Athena, MinDAT, MinMax Asbolane     (Co,Ni)1-y(Mn++++O2)2-x(OH)2-2y+2x•n(H2O) NAME ORIGIN: Named from the Greek "to soil like soot". Aschamalmite     Pb6Bi2S9 NAME ORIGIN: Named for the locality. LOCALITY: Ascham Alm, Untersulzbachtal, Austria. Ascharite *  (see Szaibelyite ) See Also: GOOGLE, Athena, MinDAT, MinMax Ashanite ?     (Nb,Ta,U,Fe,Mn)4O8 NAME ORIGIN: From Altai and SHAN, Chinese for "mountains," for the occurrence in the Altai Mountains, China. Ashburtonite     HPb4Cu++4Si4O12(HCO3)4(OH)4Cl NAME ORIGIN: Named for the locality. LOCALITY: Anticline prospect, on Mineral Claim 84, which is on the Ashburton Downs pastoral lease, 11.2 km west-southwest of Ashburton Downs homestead. Ashcroftine-(Ce) *     K5Na5(Ce,Ca)12Si28O70(OH)2(CO3)8•8(H2O) NAME ORIGIN: Named for Frederick Noel Ashcroft (1878-1949), benefactor to the British Museum (Natural History), London, England. Ashcroftine-(Y)     K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8•8(H2O) NAME ORIGIN: Named for Frederick Noel Ashcroft (1878-1949), benefactor to the British Museum (Natural History), London, England. Ashoverite     Zn(OH)2 NAME ORIGIN: Named for the locality. LOCALITY: Milltown, near Ashover, Derbyshire, England. Ashtonite *  (see Mordenite ) See Also: GOOGLE, Athena, MinDAT, MinMax Asisite     Pb12(SiO4)O8Cl4 NAME ORIGIN: The root name "Asis" means "drinking place" in the local Nama language and is also the name of the farm on which the Kombat mine is located. LOCALITY: Kombat mine, located 37 km east of Otavi and 49 km south of Tsumeb in the north-central part of Namibia. Aspidolite     NaMg3AlSi3O10(OH)2 NAME ORIGIN: The name is from the Greek "aspisidos", like a shield, alluding to the appearance of its crystals. Asselbornite     (Pb,Ba)(UO2)6(BiO)4(AsO4)2(OH)12•3(H2O) NAME ORIGIN: Named for Eric Asselborn (1954-), mineral collector and surgeon, Montrevel-en-Bresse, Dijon, France, in whose collection the mineral was first found.. Astrocyanite-(Ce)     Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2•1.5(H2O) NAME ORIGIN: Named from the Greek for "star" and "blue" alluding to the star-like habit and blue color and the dominant Ce. Astrophyllite     K2Na(Fe++,Mn)7Ti2Si8O26(OH)4 NAME ORIGIN: From the Greek aster - "star" and fyllon - "leaf." Atacamite     Cu2Cl(OH)3 NAME ORIGIN: Named after its locality. LOCALITY: Atacam desert province in northern Chile. Atelestite     Bi8(AsO4)3(OH)5O5 NAME ORIGIN: Derivation not explicitly stated. Probably from the Greek for "incomplete," as the composition was undetermined when the mineral was first described. Atencioite !     Ca2Fe++[ ]Mg2Fe++2Be4(PO4)6(OH)4•6H2O NAME ORIGIN: Named for Dr. Daniel Atencio, professor of mineralogy at the Geoscience Institute of the University of São Paulo, Brazil. Athabascaite     Cu5Se4 NAME ORIGIN: Named for the locality. LOCALITY: Martin Lake mine, Uranium City, Lake Athabasca, SK, Canada. Atheneite     (Pd,Hg)3As NAME ORIGIN: After the Greek goddess "Pallas Athene," in allusion to its palladium content. Atlasovite     Cu6Fe+++Bi+++O4(SO4)5•KCl NAME ORIGIN: Named for Vladimir Vasil’evich Atlasov (1661/1664-1711), Russian traveller who first explored the Kamchatka Peninsula. Atokite     (Pd,Pt)3Sn NAME ORIGIN: For the Atok mine, South Africa. Atopite *  (see Romeite ) See Also: GOOGLE, Athena, MinDAT, MinMax Attacolite *  (see Attakolite ) See Also: GOOGLE, Athena, MinDAT, MinMax Attakolite     (Ca,Sr)Mn++(Al,Fe+++)4[(Si,P)O4]H(PO4)3(OH)4 NAME ORIGIN: Named from the Greek for "salmon" for the pale pink color. Attapulgite *  (see Palygorskite ) See Also: GOOGLE, Athena, MinDAT, MinMax Attikaite !     Ca3Cu2Al2(AsO4)4(OH)4•2H2O NAME ORIGIN: Named for the locality. LOCALITY: Christiana mine No. 132, Kamareza, Lavrion District, Attií Prefecture, Greece. Aubertite     CuAl(SO4)2Cl•14(H2O) NAME ORIGIN: Named for J. Aubert (1929- ), French geophysicist who collected the first specimens. Augelite     Al2(PO4)(OH)3 NAME ORIGIN: From the Greek for "luster," for its pearly luster on the cleavage. Augite     (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 NAME ORIGIN: From the Greek auge - "luster." Aurichalcite     (Zn,Cu)5(CO3)2(OH)6 NAME ORIGIN: Probably from the Greek oreichalchos, "mountain copper." Auricupride     Cu3Au NAME ORIGIN: Named after its composition of Au and Cu. Aurivilliusite !     Hg+Hg++OI NAME ORIGIN: Named for Karin Aurivillius (1920-1982), chemist-crystallographer at the University of Lund, Sweden, who determined the crystal structure of numerous synthetic Hg compounds. Auroantimonate *     AuSbO3 NAME ORIGIN: Named for the composition (AUROium ANTIMONATE). Aurorite     (Mn,Ag,Ca)Mn++++3O7•3(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Aurora mine, Treasure Hill, Hamilton, Nevada, USA. Aurostibite     AuSb2 NAME ORIGIN: In reference to its composition. Austinite     CaZn(AsO4)(OH) NAME ORIGIN: To honor Professor Austin Flint Rogers (1877-1957), American mineralogist, Stanford University, Palo Alto, California, USA. Autunite     Ca(UO2)2(PO4)2•10-12(H2O) NAME ORIGIN: Named for the locality. LOCALITY: L'Ouche de Jau, St. Symphorien, and other places near Autun, Saone-et-Loire, France. Avanturine - feebly translucent chalcedony  (see Quartz ) See Also: GOOGLE, Athena, MinDAT, MinMax Avdoninite !     K2Cu5Cl8(OH)4•H2O NAME ORIGIN: Named for Vladimir Nikolaevich Avdonin (b 1925), a senior researcher of the Ural Geological Museum of the Ural State Mining University. Averievite !     Cu5(VO4)2O2•CuCl2 NAME ORIGIN: Name for V. V. Averiev (1929-1968), Russian volcanologist. Avicennite     Tl2O3 NAME ORIGIN: For the medieval (Persian) scholar and physician, Abu 'Ali al-Husayn ibn 'Abd Allah ibn Sina (Avicenna) (930-1037), who lived in Bukhara, Tadzhikistan. Avogadrite     (K,Cs)BF4 NAME ORIGIN: Named for Amedeo Avogadro (1776-1856), Professor of Physics at the University of Turin, Turin, Italy. Awaruite     Ni2Fe to Ni3Fe NAME ORIGIN: For the locality near Awarua Bay, New Zealand. LOCALITY: From the Red Hills and the Gorge River draining them, near Awarua Bay, south Westland, New Zealand. At Coolac, New South Wales, and in the Lord Brassey mine, Tasmania, Australia. Axinite *  (see Tinzenite ) See Also: GOOGLE, Athena, MinDAT, MinMax Axinite-(Fe)     Ca2Fe++Al2BO3Si4O12(OH) NAME ORIGIN: From the Greek acine - "ax" in allusion to the acute shape of typical crystals and the Latin - ferrum - "iron" in reference to the Fe in the chemical formula. Axinite-(Mg)     Ca2MgAl2BO3Si4O12(OH) NAME ORIGIN: From the Greek acine - "axe" in allusion to the acute shape of typical crystals and the Greek, "Magnesia" a district in Thessaly in reference to the Mg in the chemical formula. Axinite-(Mn)     Ca2Mn++Al2BO3Si4O12(OH) NAME ORIGIN: From the Greek acine - "axe" in allusion to the acute shape of typical crystals and the from the Latin magnes = "magnet" in reference to Mn in the chemical formula. Azoproite     (Mg,Fe++)2(Fe+++,Ti,Mg)BO5 NAME ORIGIN: Named from a Russian acronym honoring the Study of Deep Zones of the Earth’s Crust (AZOPRO in Russian) sponsored in 1969 by the International Geological Association. Azovskite - massive non-crystalline hydrous Fe-phosphate mixed with goethite  (see Santabarbaraite ) See Also: GOOGLE, Athena, MinDAT, MinMax Azurite     Cu3(CO3)2(OH)2 NAME ORIGIN: From the Persian lazhward, meaning "blue.".

Index A Minerals Index B Minerals Index C Minerals Index D Minerals Index E Minerals Index F Minerals Index G Minerals Index H Minerals Index I Minerals Index J Minerals Index K Minerals Index L Minerals Index M Minerals Index N Minerals Index O Minerals Index P Minerals Index Q Minerals Index R Minerals Index S Minerals Index T Minerals Index U Minerals Index V Minerals Index W Minerals Index X Minerals Index Y Minerals Index Z Minerals All LEGEND Minerals identified with this icon have a sound file, courtesy of The Photo-Atlas of Minerals, which gives the pronunciation of the mineral name. Minerals identified with this icon have an image or picture in the database which may be viewed. Minerals identified with this icon have a Java crystal form, created with the program JCrystal, which can be manipulated and rotated. This icon links the mineral to the locality-rich information contained in Mindat.org. Minerals identified with this icon are radioactive. - Detectable with very sensitive instruments, - very mild, - weak, - strong, - very strong, - dangerous. * Mineral Name is Not IMA Approved. ! New Dana Classification Number Has Been Changed or Added. ? IMA Discredited Mineral Species Name.

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