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Leightonite: K2Ca2Cu(SO4)4·2(H2O)
Comments: Pale Leightonite with dark green atacamite. Location: Chuquicamata, Antofagasta, Chile. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Lengenbachite: Pb6(Ag,Cu)2As4S13
Comments: Shiny, opaque crystalline spray of lengenbachite on white dolomite?. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Lepidolite: K(Li,Al)3(Si,Al)4O10(F,OH)2
Comments: Pale lavender micaceous plates of lepidolite on matrix. Location: Minas Gerais, Brazil. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Leucophanite: (Na,Ca)2BeSi2(O,OH,F)7
Comments: Pseudo-cubic crystals of leucophanite. Location: Mont St. Hilaire, Quebec, Canada. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Linarite: PbCu(SO4)(OH)2
Comments: Deep blue prismatic crystals of linarite on matrix. Location: Mammoth mine, Tiger, Pinal County, Arizona, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Lindgrenite: Cu3(MoO4)2(OH)2
Comments: Transparent green plates of lindgrenite on matrix. Location: Chuquicamata, Antofagasta, Chile. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Linnaeite: Co++Co+++2S4
Comments: Brassy metallic octahedral crystal of linnaeite on matrix. Location: Cobalt, Ontario, Canada. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Lithiophilite: LiMnPO4
Comments: Twinned crystals of yellowish brown lithiophilite. Location: Foote mine, Kings Mountain, Cleveland County, North Carolina, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Liveingite: Pb9As13S28
Comments: Deep blue striated prismatic crystal of liveingite on a white dolomite matrix. Location: Lengenbach quarry Binntal, Valais, Switzerland. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Lollingite: FeAs2
Comments: Sharp, twinned crystals Löllingite on matrix. Location: Oruro, Oruro Department, Bolivia. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals