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.
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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. |
Ni++C31H32N4 NAME ORIGIN: Named after Philip H. Abelson, president, the Carnegie Institution, Washington, DC, a pioneer in organic geochemistry.
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.
K(UO2)(AsO4)·4(H2O) NAME ORIGIN: Named for Jess Abernathy, Moab, Utah, mine owner who found the first specimens. Sn3O(OH)2Cl2 NAME ORIGIN: Named for its locality. LOCALITY: Sharm Abhur, a cove in the Red Sea, Saudi Arabia, Jiddah, Red Sea Cu++Mn+++6SiO12 NAME ORIGIN: Named for Irmgard Abs-Wurmbach (1938-), German mineralogist. 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. CO(CH3)(NH2) NAME ORIGIN: For ACETic acid and AMIDE, for ammonia in its composition. FeSe Ca2(Mg,Fe++)5Si8O22(OH)2 NAME ORIGIN: From the Greek, aktinos, meaning "ray" in allusion to actinolite's fibrous nature. SrAlF4(OH)·(H2O) NAME ORIGIN: From the Latin acuminis, sharp point, for spear head, the characteristic shape of the crystals. Zn2(AsO4)(OH) NAME ORIGIN: Named after the French mineralogist Gilbert Joseph Adam (1795-1881).
NaY(CO3)2·6(H2O) NAME ORIGIN: Named for Professor Frank Dawson Adams (1859-1942) of McGill University, Montreal, Quebec. CaMg(AsO4)(OH) NAME ORIGIN: From the Greek for indistinct, for its occurrence as massive. MgB6O10·7(H2O) NAME ORIGIN: For Admont, Austria, near the original locality. LOCALITY: Austria, Schidmaur, near Admont NaFe+++Si2O6 NAME ORIGIN: Named after the Teutonic god of the sea. Acmite is from the Greek "point" in allusion to the pointed crystals. (Ca,Na)(Mg,Fe++,Fe+++)[Si2O6] NAME ORIGIN: Name derived from its intermediate pyroxene composition. This is not an end-member species. Na2Fe++5TiSi6O20 NAME ORIGIN: From the Greek for riddle, apparently an allusion to its (formerly) uncertain chemical composition. (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. ([ ],Ni)9(AsO4)2(AsO6) (?) NAME ORIGIN: Named from the Greek for 'copper rust', in allusion to its appearance.
(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.
(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. (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.
(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. Ca3Si2O4(OH)6 NAME ORIGIN: For Alpheus Fuller Williams (1874-1953), General Manager, DeBeers Consolidated Mines, Kimberley, South Africa. 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.
(Ce,Ca)Cu6(AsO4)3(OH)6·3(H2O) NAME ORIGIN: Named as the Ce-dominant analog of agardite-(La) and agardite-(Y).
(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.
(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.
(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. (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. NaCa2Si4O10F NAME ORIGIN: Named for Stuart O. Agrell, British mineralogist, Cambridge University.
(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. Ag4SeS NAME ORIGIN: Named for Ponciano Aguilar (1853-1935), superintendent of the San Carlos mine, Guanajuato, where the mineral was found. (Fe++,Zn)Al6(PO4)4(OH)8·4(H2O) NAME ORIGIN: Named for Allen V. Heyl (1918-), economic geologist, U. S. Geological Survey. (Ni,Co)SeO3·2(H2O) PbCuBiS3 NAME ORIGIN: For Dr. Arthur Aikin (1773-1854), a founder and long-time Secretary of the Geological Society of London, England.
(K,Na)3Cu20Al3Si29O76(OH)16·~8(H2O) NAME ORIGIN: Named for the locality. LOCALITY: New Cornelia mine, Ajo, Pima County,, Arizona, USA. Fe+++(O,OH,Cl) NAME ORIGIN: Named for the locality. LOCALITY: Akagane mine, Iwate Prefecture, Japan. (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. (Al2O3)4·(H2O) NAME ORIGIN: Named for the Kazakh name for the locality. LOCALITY: Solvech fluorite deposit, Karaganda region, Kazakhstan, Akdala. Ca2MgSi2O7 NAME ORIGIN: For Anders Richard Akerman (1837-1922), Swedish metallurgist. Mn++++O2 NAME ORIGIN: For the Akhtensk deposit, Russia, where it was first noted. (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 Mn4Mg(AsO4)2(OH)4·4(H2O) NAME ORIGIN: From the Greek for wart, for its typical habit. MgB6O7(OH)6·2(H2O) Cu6Hg3As4S12 NAME ORIGIN: Named after the locality. LOCALITY: Gal-Kyaya deposit, Yakutia, and Aktash deposit, Altai Mts., Russia. MnS NAME ORIGIN: Named after its locality Alabanda, Turkey. LOCALITY: Turkey, Aydin, Alabanda As8S9 NAME ORIGIN: For the occurrence in the Alacran deposit, Chile. 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, AlAsO4 NAME ORIGIN: Named from its chemical composition of Aluminum and Arsenic. NaAlSi3O8 NAME ORIGIN: From the Latin, albus, in allusion to the common color.
Ca4Mg(UO2)2(CO3)6F2·17(H2O) Mg5Al12(PO4)8(OH)22·32(H2O) NAME ORIGIN: Named for Arthur Richard Alderman (1901-1980), Mineralogist and petrologist, University of Adelaide, SA, Australia. CaMgB2O4Cl·7(H2O) (?) PbBi2Te2S2 (?) NAME ORIGIN: Named after the locality. LOCALITY: In the Alekseev mine, Sutemskii region, Stanovoi Range, Russia. 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. Cu6As NAME ORIGIN: Named for the locality. LOCALITY: Chile, Algodones silver mn, Coquimbo [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. (Fe,Ni)2P NAME ORIGIN: Named for Alla Bogdanova, Geological Institute, Kola Science Centre of Russian Academy of Sciences. Mn7(AsO4)2(OH)8 NAME ORIGIN: From the Greek, to change, a reference to the strong pleochroism.
(Ce,Ca,Y)2(Al,Fe+++)3(SiO4)3(OH) NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833).
Ca(REE,Ca)Al2(Fe++,Fe+++)(SiO4)(Si2O7)O(OH) NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833).
(Y,Ce,Ca)2(Al,Fe+++)3(SiO4)3(OH) NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833). Ag1-xSbx(x=0.009-0.16) NAME ORIGIN: Named from the Greek for 'another' and the Latin 'argentum'. Mn5(SiO4)2(OH)2 NAME ORIGIN: Named after its locality. LOCALITY: Bald Knob, Alleghany Co., North Carolina, USA. (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. Al2O3·(SiO2)1.3-2·((H2O))2.5-3 NAME ORIGIN: From the Greek allos - "other" and phanos - "to appear." Na19(Ca,Mn++)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl·2(H2O) NAME ORIGIN: For its occurrence on Mt. Alluaiv, Kola Peninsula, Russia. NaCaFe++(Mn,Fe++,Fe+++,Mg)2(PO4)3 NAME ORIGIN: Named for Francois Alluaud, mining engineer of Limoges, France, who discovered the mineral. Fe++3Al2(SiO4)3 NAME ORIGIN: Named after its locality. LOCALITY: Alabanda in Asia Minor.
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". Fe++5Fe+++4V+++++4Si3O27
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. BaCa(CO3)2 NAME ORIGIN: Named after the locality. LOCALITY: Brownley Hill lead mine, Alston, Cumberland and Fallowfield lead mine hear Hexham, Northcumberland, England. PbTe NAME ORIGIN: Named after its locality. LOCALITY: Ziryanovsk in the Altai Mountains, Siberia. Mg2(PO4)(OH,F,O) NAME ORIGIN: To honor Professor Egon Althaus (1933- ), Karlsruhe University, Karlsruhe, Germany.
ThAl(UO2)7(PO4)4(OH)5·15(H2O) NAME ORIGIN: For the major cations in the composition, Aluminum, Thorium, Uranium, Phosphorus.
Na3K6Ti2Al2Si8O26Cl3 NAME ORIGIN: Name for the elements Al, Ti, and Si in the composition. Al2(SO4)(OH)4·7(H2O) NAME ORIGIN: Named after its chemical composition. Mg2(Al,Mg,Sn)(BO3)O2 NAME ORIGIN: Named as the Al and Mg dominant member of the hulsite group. [ ]CaNaMg3Al2(Si7Al)O22(OH)2 NAME ORIGIN: Named as the aluminum member of the barriosite group.
KAl(Mg,Fe++)[ ]Si4O10(OH)2 Al2/3Fe+++4(SO4)6O(OH)2·20(H2O) [ ]CaNa(Fe2+)3Al2(Si7Al)O22(OH)2 [ ]Ca2(Fe2+)3Al2(Si6Al2)O22(OH)2 NAME ORIGIN: Named for its composition and for Gustav Tschermak von Sessenegg (1836-1927), Austrian mineralogist. NaCaNaMg3Al2[Si6Al2O22](OH)2 NAME ORIGIN: Named after the chemical composition and the locality. LOCALITY: Wali-tarama, Mariupol, Ukraine. Al NAME ORIGIN: From the Latin, alumen = "alum." CaAl2(CO3)2(OH)4·3(H2O) NAME ORIGIN: Named after its chemical composition.
K3Cu3AlO2(SO4)4 NAME ORIGIN: It is the aluminum dominant analog of klyuchevskite.
KAl4(AsO4)3(OH)4·6·5(H2O) NAME ORIGIN: As the ALUMinum analog of "pharmacosiderite." AlTaO4 NAME ORIGIN: For ALUMinum and TANTalum in the composition. (W,Al)(O,OH)3 (?) NAME ORIGIN: Named for the composition.
KAl3(SO4)2(OH)6 NAME ORIGIN: From the Latin alunit, meaning "alum." Al2(SO4)3·17(H2O) NAME ORIGIN: From the Latin alumen ="alum" and the Greek genos ="origin." (Zn,Ni)Al4(VO3)2(OH)12·2(H2O) (Fe++,Mg)(OH)2 NAME ORIGIN: Named for the Amakin Expedition, which prospected the Yakutain diamond deposits. Ag2Hg3 Fe+++(SO4)(OH)·3(H2O) NaFe+++(SO4)2·6(H2O) [C,H,O] (Li,Na)Al(PO4)(F,OH) NAME ORIGIN: From the Greek amblys - "blunt" and goni - "angle." NaB3O3(OH)4 Mg2Al(SiAl)O5(OH)4 NAME ORIGIN: Honors James Ames, a mine owner.
K2Na2Al4Si4O16·5(H2O) NAME ORIGIN: To honor Giovan Battista, Amici (1786-1863), physicist, optician, and inventor of microscope optical elements. Ca3Be2Si3O10(OH)2 NAME ORIGIN: Named for Gregori Aminoff (1993-1947), Swedish Mineralogist and crystallographer. (NH4)Al3(SO4)2(OH)6 NAME ORIGIN: Named for its composition (Ammonia, Al,). (NH4)2B10O16·5(H2O) (NH4)Fe+++3(SO4)2(OH)6
(NH4,K)AlSi2O6 NAME ORIGIN: For "ammonia" in its chemical composition and its relation to "leucite." CaAl(Si,Al)4O8(OH)4·((H2O),Cl) NAME ORIGIN: For the locality. LOCALITY: In the Amstall graphite quarry, Amstall, Austria. NaAlSi2O6·(H2O) NAME ORIGIN: From the Greek word meaning weak, referring to a weak electrical charge developed on rubbing.
(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). Ca2Fe++(PO4)2·4(H2O) NAME ORIGIN: For its discovery near Anapa, Russia. TiO2 NAME ORIGIN: From the Greek, anatasis - "elongation."
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.
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. Al2SiO5 = Al[6]Al[5]OSiO4 NAME ORIGIN: Named after its locality. LOCALITY: Andalucia (Spain), an early but now unimportant location.
Na2Ca(UO2)(CO3)3·6(H2O) NAME ORIGIN: Named for Charles Alfred Anderson (1902-1990), U. S. Geological Survey. (Na,Ca)(Si,Al)4O8 NAME ORIGIN: Named after its locality. LOCALITY: Andes Mountains, South America. PbAgSb3S6 NAME ORIGIN: For Andor von Semsey (1833-1923), a Hungarian nobleman, who was also an amateur mineralogist. 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. 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.
(Mn,Ca)(La,Ce,Ca,Nd)AlMn+++Mn++(SiO4)(Si2O7)O(OH) NAME ORIGIN: Named after its discovery locality. LOCALITY: Found in a manganese-rich silicate-carbonate rock, Petalon Mountain, Andros Island, Cyclades, Greece. (Ru,Os)As2 NAME ORIGIN: For the Chinese locality at Anduo. LOCALITY: From Anduo, Tibet, China.
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 Cu2AgPbBiS4 NAME ORIGIN: Named for the locality. LOCALITY: Angela mine, district of Los Manantiales, Gastre, Chubut, Argentine. Fe+++4(AsO4)2O3 NAME ORIGIN: To honor Dr. Victorio Angelelli (1908- ), Argentinean mining geologist, Director of the Argentinean Geological Survey. PbSO4 NAME ORIGIN: Named after the island of Anglesey (Wales, Great Britain). CaSO4 NAME ORIGIN: From the Greek anhydros, meaning "waterless" (In contrast to Gypsum, which contains water). Cu7S4 NAME ORIGIN: For the Ani mine, Japan. Ba(Ti,V+++,Cr+++)8O16 NAME ORIGIN: Named for the locality. LOCALITY: Shiti Barite deposit, Ankang County, Shaanxi Provice, China. Ca(Fe++,Mg,Mn)(CO3)2 NAME ORIGIN: Named after the Styrian (Austrian) mineralogist, Mathias Joseph Anker (1771-1843). (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. Ni3(AsO4)2·8(H2O) NAME ORIGIN: Named after its locality. LOCALITY: Annaberg, Germany.
KFe++3AlSi3O10(OH,F)2 NAME ORIGIN: For the first noted occurrence at Cape Ann, Massachusetts, USA. CaAl2Si2O8 NAME ORIGIN: From the Greek, an + orthos, "not upright" in allusion to the oblique crystals.
(Na,K)AlSi3O8 NAME ORIGIN: From the Greek for "oblique" and "fracture," descriptive of the cleavage V++++O(SO4)(H2O)5 NAME ORIGIN: Named for as the triclinic polymorph of minasragrite. MnV2O6·4(H2O) NAME ORIGIN: Named for Stefan Ansermet (1964-), Swiss mineralogist. CaCl2·6(H2O) NAME ORIGIN: Named after the continent of Antarctica. AlWO3(OH)3 NAME ORIGIN: Named for Raymond Anthoine (1888-1971), Belgian mining engineer, who wrote on prospecting of alluvial deposits. Cu(OH,Cl)2·3(H2O) NAME ORIGIN: Named for John W. Anthony (1920-1992), mineralogist, University of Arizona. [ ]Mg7Si8O22(OH)2 NAME ORIGIN: From the Latin anthophyllum - "clove" in allusion to the color. (Mg,Fe++)3Si2O5(OH)4 NAME ORIGIN: Named after its locality. From the Latin, serpens - "snake." LOCALITY: Antigorio, Italy (Ag,Cu)16(Sb,As)2S11 NAME ORIGIN: For its compositional relationship to pearceite. Sb2Se3 NAME ORIGIN: Names in 1993 for the composition.