Dave Barthelmy's Image Gallery

Dave Barthelmy's Image Gallery
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Images from Dave Barthelmy

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Dave Barthelmy's Image Gallery With 142 Images

Titanite Image

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Titanite: CaTiSiO5  
Amesite: Mg2Al(SiAl)O5(OH)4

Comments: Green titanite (sphene) crystals on purple chromamesite (clinochlore?).
Location: Saranovskaya Deposit, Middle Ural Mountains, Russia. Scale: Picture size 7 cm.
© Dave Barthelmy

Titanite Image

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Titanite: CaTiSiO5  
Amesite: Mg2Al(SiAl)O5(OH)4

Comments: Green titanite (sphene) crystals on purple chromamesite (clinochlore?).
Location: Saranovskaya Deposit, Middle Ural Mountains, Russia. Scale: Picture size 7 cm.
© Dave Barthelmy

Trona Image

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Trona: Na3(CO3)(HCO3)·2(H2O)  
Nahcolite: NaHCO3

Comments: Massive, coarse-grained Trona from a drill core of the upper mixed-layer Saltbed. White areas are nahcolite alteration.
Location: Searles Lake, San Bernardino County, California, USA. Scale: 12 x 15 cm.
© Dave Barthelmy

Trona Image

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Trona: Na3(CO3)(HCO3)·2(H2O)  
Nahcolite: NaHCO3

Comments: Massive, coarse-grained Trona from a drill core of the upper mixed-layer Saltbed. White areas are nahcolite alteration.
Location: Searles Lake, San Bernardino County, California, USA. Scale: 12 x 15 cm.
© Dave Barthelmy

Tsugaruite Image

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Tsugaruite: Pb4As2S7

Comments: Dark gray veinlet of tsuraruite in matrix.
Location: Yunosawa mine, Tsugaru District, Aomori Prefecture, Japan. Scale: Picure size 3x2 cm.
© Dave Barthelmy

Tsugaruite Image

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Tsugaruite: Pb4As2S7

Comments: Dark gray veinlet of tsuraruite in matrix.
Location: Yunosawa mine, Tsugaru District, Aomori Prefecture, Japan. Scale: Picure size 3x2 cm.
© Dave Barthelmy

Ulexite Image

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Ulexite: NaCaB5O6(OH)6·5(H2O)

Comments: Tray of fibrous Ulexite fragments which have been cut and polished perpendicular to the fibers. This shows the fiber-optic "TV stone" effect which transmit images through the fragments.
Location: U.S. Borax Mine, Boron, Kramer District, Kern County, California, USA. Scale: Picture size 10 cm.
© Dave Barthelmy

Ulexite Image

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Ulexite: NaCaB5O6(OH)6·5(H2O)

Comments: Tray of fibrous Ulexite fragments which have been cut and polished perpendicular to the fibers. This shows the fiber-optic "TV stone" effect which transmit images through the fragments.
Location: U.S. Borax Mine, Boron, Kramer District, Kern County, California, USA. Scale: Picture size 10 cm.
© Dave Barthelmy

Valentinite Image

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Valentinite: Sb2O3  
Antimony: Sb

Comments: Beige valentinite crystals with red kermesite in a matrix of gray, massive antimony.
Location: South-Ham Antimony mine, Lake Nicolet, Quebec, Canada. Scale: Picture Size 3 cm.
© Dave Barthelmy

Valentinite Image

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Valentinite: Sb2O3  
Antimony: Sb

Comments: Beige valentinite crystals with red kermesite in a matrix of gray, massive antimony.
Location: South-Ham Antimony mine, Lake Nicolet, Quebec, Canada. Scale: Picture Size 3 cm.
© Dave Barthelmy

Wakabayashilite Image

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Wakabayashilite: (As,Sb)6As4S14

Comments: Golden colored, acicular crystals of wakabayashilite on matrix.
Location: White Cap mine, Nye County, Nevada, USA. Scale: Picture size 3 cm.
© Dave Barthelmy

Wakabayashilite Image

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Wakabayashilite: (As,Sb)6As4S14

Comments: Golden colored, acicular crystals of wakabayashilite on matrix.
Location: White Cap mine, Nye County, Nevada, USA. Scale: Picture size 3 cm.
© Dave Barthelmy

Wendwilsonite Image

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Wendwilsonite: Ca2(Mg,Co)(AsO4)2·2(H2O)  
Minrecordite: CaZn(CO3)2

Comments: Wendell Wilson, publisher, editor-in-chief of the Mineralogical Record, and the person whom wendwilsonite was named after, kindly provided the mineral name pronunciations for minrecordite and wendwilsonite.
Location: Tucson Convention Center, 50th Tucson Gem and Mineral Show, February 14, 2004. Scale: NA.
© Dave Barthelmy

Wendwilsonite Image

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Wendwilsonite: Ca2(Mg,Co)(AsO4)2·2(H2O)  
Minrecordite: CaZn(CO3)2

Comments: Wendell Wilson, publisher, editor-in-chief of the Mineralogical Record, and the person whom wendwilsonite was named after, kindly provided the mineral name pronunciations for minrecordite and wendwilsonite.
Location: Tucson Convention Center, 50th Tucson Gem and Mineral Show, February 14, 2004. Scale: NA.
© Dave Barthelmy

Whiteite-(CaFeMg) Image

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Whiteite-(CaFeMg): Ca(Fe++,Mn++)Mg2Al2(PO4)4(OH)2·8(H2O)

Comments: Blocky, beige-pink whiteite-(CaFeMg) crystals on matrix.
Location: Cross-cut Creek, Yukon Territory, Canada. Scale: Crystal size 2x3x3.5 cm.
© Dave Barthelmy

Whiteite-(CaFeMg) Image

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Whiteite-(CaFeMg): Ca(Fe++,Mn++)Mg2Al2(PO4)4(OH)2·8(H2O)

Comments: Blocky, beige-pink whiteite-(CaFeMg) crystals on matrix.
Location: Cross-cut Creek, Yukon Territory, Canada. Scale: Crystal size 2x3x3.5 cm.
© Dave Barthelmy

Wicksite Image

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Wicksite: NaCa2(Fe++,Mn++)4MgFe+++(PO4)6·2(H2O)  
Wolfeite: (Fe++,Mn++)2(PO4)(OH)

Comments: Cleaved nodule of fine-grained aggregate of wicksite and wolfeite.
Location: Big Fish River, Yukon, Canada. Scale: 3 x 1.5 cm.
© Dave Barthelmy

Wicksite Image

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Wicksite: NaCa2(Fe++,Mn++)4MgFe+++(PO4)6·2(H2O)  
Wolfeite: (Fe++,Mn++)2(PO4)(OH)

Comments: Cleaved nodule of fine-grained aggregate of wicksite and wolfeite.
Location: Big Fish River, Yukon, Canada. Scale: 3 x 1.5 cm.
© Dave Barthelmy

Wulfenite Image

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Wulfenite: PbMoO4

Comments: Tabular crystal druse of brownish orange wulfenite on matrix.
Location: Ahumada mine, Los Lamentos, Chihuahua, Mexico. Scale: Crystal size 5-10 mm.
© Dave Barthelmy

Wulfenite Image

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Wulfenite: PbMoO4

Comments: Tabular crystal druse of brownish orange wulfenite on matrix.
Location: Ahumada mine, Los Lamentos, Chihuahua, Mexico. Scale: Crystal size 5-10 mm.
© Dave Barthelmy
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