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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
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 precipitates, derived from hydroscopically 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
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