's Image Gallery

Ludjibaite: Cu5(PO4)2(OH)4

Comments: Coating of intense blue-green microcrystals and crystalline ludjibaite.
Location: Shituru, Shaba, Zaire. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ludlamite: (Fe++,Mg,Mn)3(PO4)2·4(H2O)

Comments: crystal group of Ludlamite.
Location: Huanuni Mine, Oruro Department, Bolivia. Scale: Crystal size 1.5 x 1 cm.
© John Veevaert

Ludlockite: (Fe++,Pb)As+++++2O6

Comments: Acicular crystals of red-orange ludlockite on quartz and chalcocite.
Location: Tsumeb Mine, Tsumeb, Namibia. Scale: Crystal size 0.4 cm.
© John Veevaert

Ludwigite: Mg2Fe+++BO5

Comments: Limonitic matrix with blue crystals of ludwigite.
Location: Simms Pass, Lemhi County, Idaho, USA. Scale: Crystal size 9 mm.
© John Veevaert

Ludwigite: Mg2Fe+++BO5  
Chestermanite: Mg2(Fe+++,Mg,Al,Sb+++++)BO3O2

Comments: Black capillary crystals of ludwigite with green inclusions of chestermanite in impure marble.
Location: Near Potter Pass, Fresno County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ludwigite: Mg2Fe+++BO5

Comments: Bright black, radial fibrous aggregates of ludwigite.
Location: Brosso mine, Piemonte, Italy. Scale: Sample size 4x3 cm.
© Sandro Maggia/Minernet.it

Lueshite: NaNbO3

Comments: Opaque, brownish, pseudo-cubic crystals of lueshite.
Location: Republic of Congo. Scale: Crystal size 8 mm.
© John Attard

Luetheite: Cu2Al2(AsO4)2(OH)4·(H2O)

Comments: Blue to greenish crystalline luetheite crust on altering rock matrix.
Location: Patagonia, Santa Cruz County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Lulzacite: Sr2Fe++(Fe++,Mg)2Al4(PO4)4(OH)10

Comments: Dark gray siderite with grayish green lulzacite.
Location: St. Aubindes Chateaux, Loire, France. Scale: 1.7 x 1.4 cm.
© John Veevaert

Lusungite: (Sr,Pb)Fe+++3(PO4)2(OH)5·(H2O)  
Kintoreite: PbFe+++3(PO4)2(OH,H2O)6

Comments: Greenish-yellow kintoreite crystals on limonite and or goethite. The specimen was originally labelled lusungite in the early 1990's and reinvestigation of the specimen showed it to be kintoreite.
Location: Kintore Open Cut, Broken Hill, NSW, Australia. Scale: Specimen Size 3x6 cm.
© Diederik Visser

Luzonite: Cu3AsS4

Comments: Pinkish-brown metallic luzonite, tarnishing gray, crystalline.
Location: Chin Kuashih, Kagoshima, Taiwan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Luzonite: Cu3AsS4  
Catamarcaite: Cu6GeWS8

Comments: Catamarcaite (Ct) in contact with luzonite (Luz), unnamed Cu8Fe2ZnGe2S12 (un), sphalerite (Sp) and fine-grained chalcocite - covellite (Cc/Cv). (CanMin v44:1481).
Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina. Scale: See Image.
© Canadian Mineralogist

Lyonsite: Cu++3Fe+++4(VO4)6

Comments: Black, prismatic crystals of lyonsite in matrix.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag

Macdonaldite: BaCa4[Si16O36(OH)2]·10(H2O)

Comments: Bright white flattened radial macdonaldite aggregate on quartz.
Location: Rush Creek, Fresno County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Macedonite: PbTiO3

Comments: B&W image of pseudo-cubic macedonite grains. (AmMin, v56:387).
Location: Accessory mineral in the amazonite-rich, quartz-syenite veins in Crni Kamen near Prilep, Macedonia. Scale: Picture size 100 x.
© American Mineralogist

Macfallite: Ca2(Mn+++,Al)3(SiO4)(Si2O7)(OH)3  
Johnsenite-(Ce): Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(CO3)(OH,Cl)2  
Braunite-I: Mn++Mn+++6SiO12

Comments: Tiny - less than 1mm - maroon crystals of mcfallite suspended as inclusions in massive quartz along with larger spots of brown johnsenite-(Ce) and braunite.
Location: Artur mine, Jaguaracu, Minas Gerais, Brazil. Scale: Overall 3 x 2.5 slab.
© Tom Loomis / Dakota Matrix

Mackayite: Fe+++Te2O5(OH)

Comments: Greenish brown crystals of mackayite on matrix.
Location: McGuinnity shaft, Goldfield, Esmeralda County, Nevada, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Mackinawite: (Fe,Ni)S0.9

Comments: Mackinawite inclusions in sulfide ore (polished specimen).
Location: Mackinaw Mine, Snohomish County, Washington, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Macphersonite: Pb4(SO4)(CO3)2(OH)2  
Linarite: PbCu(SO4)(OH)2

Comments: Colorless macphersonite with blue linarite.
Location: Leadhills, Strathclyde, Scotland, UK. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Macquartite: Pb3Cu(CrO4)(SiO3)(OH)4·2(H2O)

Comments: Straw-like prismatic yellow micro crystals of macquartite to about 0.5mm on matrix.
Location: Mammoth - St. Anthony mine, Tiger, Pinal Co., Arizona, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix