Dave Barthelmy's Image Gallery

Cinnabar: HgS

Comments: Red single hexagonal (Trigonal) crystal of cinnabar on dolomite.
Location: Fenghuang, Hunan Province, Peoples Republic of China. Scale: Crystal size 1 cm.
© Dave Barthelmy

Colemanite: Ca2B6O11·5(H2O)

Comments: Coarsely crystalline colemanite, in part, covered with minute acicular crystals of strontianite.
Location: Boraxo #3 pit, Death Valley, California, USA. Scale: 30 cm.
© Dave Barthelmy

Colusite: Cu12-13V(As,Sb,Sn,Ge)3S16  
Arsenosulvanite: Cu3(As,V)S4

Comments: Bronzy, metallic tetragonal crystals of colusite (arsenosulvanite) in white marble.
Location: Val Bona quarry, Carrara, Italy. Scale: Picture size 1 cm.
© Dave Barthelmy

Coronadite: Pb(Mn++++,Mn++)8O16  
Iodargyrite: AgI

Comments: Dark, fine-grained massive coronadite with yellowish octahedral iodargyrite crystals.
Location: Broken Hill, New South Wales, Australia. Scale: Picture size 3x2 cm.
© Dave Barthelmy

Crocoite: PbCrO4

Comments: Prismatic crystals of red-orange crocoite.
Location: Adelaide Mine, Dundas, Tasmania. Scale: Specimen size 5 cm.
© Dave Barthelmy

Dickite: Al2Si2O5(OH)4  
Ankerite: Ca(Fe++,Mg,Mn)(CO3)2  
Sphalerite: (Zn,Fe)S

Comments: White, rhombohedral crystals of ankerite and dark gray, metallic sphalerite on beige dickite.
Location: Prego mine, Kladno, Czech Rebublic. Scale: Picture size 2 cm.
© Dave Barthelmy

Dioptase: CuSiO2(OH)2

Comments: Dark-blue-green crystals of dioptase on matrix. The color of dioptase does not photograph well and must be seen in person to appreciate.
Location: Altyn-tyube, Kasakhstan. Scale: Crystal size 5 mm.
© Dave Barthelmy

Edingtonite: BaAl2Si3O10·4(H2O)

Comments: White, stout prisms of calcite on pinkish analcime with small, cream-colored bladed edingtionite crystals.
Location: Old Kilpatrick, Dunbartonshite, Scotland. Scale: Picture Size 3 cm.
© Dave Barthelmy

Embolite: Ag(Br,Cl)  
Iodargyrite: AgI

Comments: Cubo-octahedral crystals of iodaryrite (I) with smaller and darker octahedral crystals of embolite (E).
Location: Broken Hill, New South Wales, Australia. Scale: Specimen size 2x1 cm.
© Dave Barthelmy

Famatinite: Cu3SbS4

Comments: Dark, purplish black, massive famatinite.
Location: Tertiary volcanic massif, the Serrania de Laurani, Bolivia. Scale: Picture size 2 cm.
© Dave Barthelmy

Fluorocannilloite: CaCa2(Mg4Al)Si5Al3O22F2

Comments: Greenish, prismatic crystals of fluorocannilloite in matrix.
Location: Yuang Yang Province, Yunnan, China. Scale: Picture size 6 cm.
© Dave Barthelmy

Gormanite: Fe++3Al4(PO4)4(OH)6·2(H2O)

Comments: Dark green, velvety mass of gormanite crystals on matrix.
Location: Rapid Creek, Yukon Territory, Canada. Scale: 3 x 4.5 cm.
© Dave Barthelmy

Gypsum: CaSO4·2(H2O)

Comments: Bladed rosettes of gypsum.
Location: unknown. Scale: Specimen size 6 cm.
© Dave Barthelmy

Gypsum: CaSO4·2(H2O)

Comments: Pencil-sized acicular crystals of gypsum.
Location: Naica, Chihuahua, S.A., Mexico. Scale: Specimen size 5 cm.
© Dave Barthelmy

Hanksite: KNa22(SO4)9(CO3)2Cl

Comments: Translucent, hexagonal crystal of hanksite.
Location: Searles Lake, San Bernardino Co., California, USA. Scale: Crystal size 3 cm.
© Dave Barthelmy

Ice: H2O

Comments: White to clear crystals of ice formed on a window at -15 Deg. C.
Location: Minot, North Dakota, USA. Scale: Picture Size 30 cm.
© Dave Barthelmy

Iodargyrite: AgI  
Embolite: Ag(Br,Cl)

Comments: Cubo-octahedral crystals of iodaryrite (I) with smaller and darker octahedral crystals of embolite (E).
Location: Broken Hill, New South Wales, Australia. Scale: Specimen size 2x1 cm.
© Dave Barthelmy

Iodargyrite: AgI  
Coronadite: Pb(Mn++++,Mn++)8O16

Comments: Dark, fine-grained massive coronadite with yellowish octahedral iodargyrite crystals.
Location: Broken Hill, New South Wales, Australia. Scale: Picture size 3x2 cm.
© Dave Barthelmy

Jagowerite: BaAl2(PO4)2(OH)2  
Penikisite: BaMg2Al2(PO4)3(OH)3

Comments: Light green crystal of jagowerite intergrown with darker green penikisite in a tetrahedrite (black) and white quartz matrix.
Location: From quartz veins cutting clays 26 km N of Hess River, Yukon Territory, Canada. Scale: Sample size 2x1 cm.
© Dave Barthelmy

Kampfite: Ba12(Si11Al5)O31(CO3)8Cl5

Comments: Anthony Kampf, Curator and Section Head of the Mineral Sciences Section at the Los Angeles County Museum of Natural History and the person whom kampfite was named for, kindly provided the pronunciation of the mineral kampfite.
Location: Tucson Convention Center, 50th Tucson Gem and Mineral Show, February 12, 2004. Scale: NA.
© Dave Barthelmy