Mineral Specimen Images (L)

Latrappite: (Ca,Na)(Nb,Ti,Fe)O3

Comments: Black, sub-metallic crystals of latrappite on matrix.
Location: La Trappe Quarry, Oka, Quebec, Canada. Scale: Crystal size 4 X 4 mm.
© John Veevaert

Laubmannite: Fe++3Fe+++6(PO4)4(OH)12  
Goethite: Fe+++O(OH)

Comments: Reddish brown goethite hosting radiating sprays of olive green laubmannite to 3 cm across.
Location: Buckeye Mountain, Polk County, Arkansas, USA. Scale: 10.5 x 7.5 cm.
© John Veevaert

Laueite: Mn++Fe+++2(PO4)2(OH)2·8(H2O)

Comments: Purple crystal of laueite on matrix.
Location: Tip Top Mine, Custer County, South Dakota, USA. Scale: Crystal size 0.4 cm.
© John Veevaert

Laumontite: CaAl2Si4O12·4(H2O)

Comments: Diamond-shaped prism of laumontite with chrysocolla.
Location: Azurite mine, Pinal County, Arizona, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Laumontite: CaAl2Si4O12·4(H2O)

Comments: White, well developed laumontite crystals up to 1 cm. on matrix.
Location: Osilo, Sardegna, Italy. Scale: Specimen size 6 x 4.5 cm.
© Sandro Maggia/Minernet.it

Laurelite: Pb7F12Cl2

Comments: Snow white acicular crystals of laurelite.
Location: Grand Reef mine, Graham Co., Arizona, United States. Scale: Crystal size 7 mm.
© Tom Loomis / Dakota Matrix

Laurionite: PbCl(OH)

Comments: Colorless, stellate spray of acicular Laurionite crystals on matrix.
Location: Laurium, Greece. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Laurite: RuS2  
Hollingworthite: (Rh,Pt,Pd)AsS

Comments: Gray grain of hollingworthite (in the center of the picture) with very slightly darker gray laurite (at the right margin). Polished section (from microprobe analysis).
Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 0.1 mm.
© Thomas Witzke / Abraxas-Verlag

Laurite: RuS2  
Kashinite: (Ir,Rh)2S3

Comments: Gray kashinite with darker gray laurite. Polished section (from microprobe analysis) in reflected light.
Location: Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia. Scale: Picture size 0.2 mm.
© Thomas Witzke / Abraxas-Verlag

Laurite: RuS2  
Hollingworthite: (Rh,Pt,Pd)AsS

Comments: Gray laurite with two smaller grains of hollingworthite (left and right from the laurite, very slightly lighter gray). Polished section (from microprobe analysis) in reflected light.
Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 0.15 mm.
© Thomas Witzke / Abraxas-Verlag

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

Lautarite: Ca(IO3)2

Comments: Sealed specimen jar with lautarite with nitratine..
Location: Atacama Desert, Chile. Scale: 3 cm Tall.
© Adam Larson

Lautite: CuAsS

Comments: Metallic dark gray Lautite aggregate.
Location: Rudolph Shaft, Lauta, Marienberg District, Erzgebirge, Saxony, Germany. Scale: Specimen size 3 cm.
© Thomas Witzke / Abraxas-Verlag

Lavendulan: NaCaCu5(AsO4)4Cl·5(H2O)

Comments: Bright blue crystals of Lavendulan crystals.
Location: Gold Hill mine, Deep Creek Mountains, Tooele County, Utah, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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

Lavrentievite: Hg3S2(Cl,Br)2

Comments: Yellow - brown lavrentievite with red cinnabar crystals in matrix.
Location: Kadyrel'skoye Deposit, Tuva, Siberia, Russia. Scale: Not Given.
© Diederik Visser

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

Lawsonbauerite: (Mn,Mg)9Zn4(SO4)2(OH)22·8(H2O)

Comments: Brown, bladed coating of lawsonbauerite crystals on white calcite.
Location: Sterling Hill, Ogdensburg, Sussex Co., New Jersey, USA. Scale: Specimen Size 8 x 7 x 4 cm.
© Rob Lavinsky

Lawsonite: CaAl2Si2O7(OH)2·(H2O)

Comments: Glaucophane schist with a heavy druse of lawsonite crystals.
Location: Reed Station, Tiburon, Marin County, California, USA. Scale: Crystal size 7 mm.
© John Veevaert

Lazarenkoite: CaFe++As+++3O7·3(H2O)

Comments: Orange, fibrous lazarenkoite in a vug.
Location: Khovu-Asky Ni-Co Deposit, Tuva Republic, Eastern-Siberian Region, Russia. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag