Mineral Specimen Images (L)

Lemmleinite-Ba: Na2K2Ba1-xTi4(Si4O12)2(O,OH)4·5(H2O)

Comments: Orange-brown pyramidal crystals of lemmleinite-Ba with greenish aegirine crystals.
Location: Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Lemmleinite-K: NaK2(Ti,Nb)2Si4O12(O,OH)2·2(H2O)

Comments: Transparent, pyramidal crystals of lemmleinite-K on matrix.
Location: Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Lemoynite: (Na,K)2CaZr2Si10O26·5-6(H2O)

Comments: Yellowish white, radial, spherical spray of prismatic Lemoynite crystals to 5mm in diameter on matrix.
Location: Mont St. Hilaire, Quebec, Canada. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Lenaite: AgFeS2

Comments: PPL polished section showing eutectic intergrowth of violet-brown lenaite with bluish-grey stephanite and freibergite (grey with a slight brownish tint).
Location: Privolnoye deposit, Central Yakutia, Russia. Scale: Picture Size 0.14 mm.
© Thomas Witzke

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

Lengenbachite: Pb6(Ag,Cu)2As4S13

Comments: Metallic gray, thin plates and sheets of lengenbachite in a vug in white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Picture width 1.2 cm.
© Walter Gabriel

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

Leogangite: Cu10(AsO4)4(SO4)(OH)6·8(H2O)

Comments: Cotype sample of leogangite (A. Strasser) showing the thin tabular habit parallel to (100). (Mineralogy and Petrology, 81:190).
Location: Mine dumps of the Danielstollen and Inschlagalm in the Schwarzleo valley, both part of the polymetallic ore district of Leogang, Salzburg province, Austria. Scale: See Image.
© Mineralogy and Petrology

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

Lepidocrocite: FeO(OH)

Comments: Translucent, red-brown crystals of lepidocrocite lining cavities in gossan matrix.
Location: Eisenzecher Zug Mine, Eiserfeld, Siegen District, North Rhine-Westphalia, Germany. Scale: 7x5x3 cm.
© John Betts - Fine 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

Lepidolite: K(Li,Al)3(Si,Al)4O10(F,OH)2  
Nanpingite: Cs(Al,Mg,Fe++,Li)2(Si3Al)O10(OH,F)2

Comments: Hexagonal tabular crystals of pearly colourless lepidolite within massive white pollucite from unknown rare metal pegmatite. Nanpingite forms the outer zones of these lepidolite crystals (~30-150 µm).
Location: China. Scale: Specimen size is 3.5x3x2 cm.
© Pavel M. Kartashov

Lepkhenelmite-Zn: Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O)

Comments: B&W image of fragments of lepkhenelmite-Zn.
Location: Lepkhe-Nel'm Mt., Lovozero, Kola, Russia. Scale: See Image.
© Diederik Visser

Lesukite: Al2(OH)5Cl·2(H2O)

Comments: Yellow to orange-yellow lesukite.
Location: Deutschlandschacht Mine, Oelsnitz, Zwickau, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

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

Leucite: KAlSi2O6

Comments: Large single crystal of dark gray leucite.
Location: Roccamonfina, Caserta Province, Campania, Italy. Scale: 20x20x20 mm.
© John Betts - Fine 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

Leucophoenicite: Mn7(SiO4)3(OH)2

Comments: Cinnamon brown crystals of leucophoenicite over deep reddish pink crystals of rhodochrosite.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 8 x 4.2 cm.
© John Veevaert

Leucophosphite: KFe+++2(PO4)2(OH)·2(H2O)  
Messelite: Ca2(Fe++,Mn)(PO4)2·2(H2O)

Comments: White messelite crystals with greenish leucophosphite.
Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals