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Landesite: (Mn,Mg)9Fe+++3(PO4)8(OH)3·9(H2O)
Comments: Brown translucent crystalline crust of landesite. Location: Hagendorf-Sud, Bayern, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Langbanite: (Mn,Ca,Fe)++4(Mn+++,Fe+++)9Sb+++++Si2O24
Comments: Stout black langbanite crystal in white matrix. Location: Langban, Varmland, Sweden. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Langbeinite: K2Mg2(SO4)3
Comments: Pale brownish pink crystalline aggregate of langbeinite. Location: Carlsbad, Eddy County, New Mexico, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Langisite: (Co,Ni)As
Comments: Gray metallic massive langisite, altering, in white quartzite. Location: Uncompaghre Mountains, Montrose County, Colorado, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Lannonite: HCa4Mg2Al4(SO4)8F9·32(H2O)
Comments: White crusts of lannonite on matrix. Location: Silver City, Grant County, New Mexico, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Larnite: Ca2SiO4
Comments: Gray larnite masses in rock. Location: Scawt Hills, Larne, County Antrim, Northern Ireland. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Larnite: Ca2SiO4 Paraspurrite: Ca5(SiO4)2(CO3)
Comments: Violet-tinted gray crystalline pure paraspurrite mass with larnite veinlets. Location: Near Darwin, Inyo County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Larsenite: PbZnSiO4
Comments: Aggregate of acicular microcrystals and crystalline larsenite. Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Latiumite: (Ca,K)8(Al,Mg,Fe)(Si,Al)10O25(SO4)
Comments: Tan opaque prismatic crystals of latiumite. Location: Capagnano, Lazio, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Lausenite: Fe+++2(SO4)3·6(H2O)
Comments: Pale tan crystalline powdery aggregate of lausenite. Location: United Verde Mine, Jerome, Yavapai County, Arizona, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Lavenite: (Na,Ca)2(Mn,Fe++)(Zr,Ti,Nb)Si2O7(O,OH,F)
Comments: Orange crystalline lavenite grains in pegmatite. Location: Mount Takhtarvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Lawrencite: (Fe++,Ni)Cl2
Comments: Capillary tube of lawrencite solution with opaque oxidized precipates, derived from hydrosocpically absorbing water from the air by solid lawrencite, collected from an oozing meteorite. Location: Nantan meteorites (Nandan meteorites), Lihu - Yaochai area, Nandan Co., Hechi Prefecture, Guangxi Zhuang Autonomous Region, China. Scale: Tube Width 0.25 mm. © Jeff Weissman / Photographic Guide to Mineral Species
Lazulite: MgAl2(PO4)2(OH)2 Trolleite: Al4(PO4)3(OH)3
Comments: Pale blue trolleite with darker blue lazulite. Location: Champion Mine, White Mountains, Mono County, California. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Leadamalgam: HgPb2
Comments: Dark gray coatings of leadamalgam on weathered ore rock. Location: Mina Bambollita, Moctezuma, Sonora, Mexico. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Leifite: Na2(Si,Al,Be)7(O,OH,F)14
Comments: Tan translucent crystal spray of leifite in syenite rock. Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Lennilenapeite: K6-7(Mg,Mn,Fe++,Fe+++,Zn)48(Si,Al)72(O,OH)216·16(H2O)
Comments: Dark greenish brown sub-metallic micaceous lennilenapeite in white calcite. Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Lenoblite: V2O4·2(H2O)
Comments: Yellow coating of lenoblite on uraninite. Location: Mounana, Haut-Ogooue, Gabon. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Leonite: K2Mg(SO4)2·4(H2O)
Comments: Translucent pale yellow crystalline massive leonite, with white alteration coating. Location: Near Carlsbad, Eddy County, New Mexico, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Letovicite: (NH4)3H(SO4)2
Comments: Pearly opaque white crystalline letovicite on matrix. Location: Kladno, Stredocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Leucophosphite: KFe+++2(PO4)2(OH)·2(H2O)
Comments: Transparent greenish brown microcrystal of leucophosphite. Location: Lone Tree Mine, Humboldt County, Nevada, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species