Photographed by Michael P. Klimetz
[Dull Black Tabular Crystal on Pegmatite]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
[Dull Black Tabular Crystal on Pegmatite]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
Columbite-Fe
[Lustrous Black Prismatic and Tabular Crystals in Quartz]
Midnight Owl Mine
White Picacho Mining District
Yavapai County
ARIZONA
Photographed by Michael P. Klimetz
Columbite-Fe
[Lustrous Black Prismatic and Tabular Crystals in Quartz]
Midnight Owl Mine
White Picacho Mining District
Yavapai County
ARIZONA
Photographed by Michael P. Klimetz
Columbite-Fe
[Lustrous Black Prismatic and Tabular Crystals in Quartz]
Midnight Owl Mine
White Picacho Mining District
Yavapai County
ARIZONA
Photographed by Michael P. Klimetz
Columbite-Fe
[Lustrous Black Prismatic and Tabular Crystals in Quartz]
Midnight Owl Mine
White Picacho Mining District
Yavapai County
ARIZONA
Photographed by Michael P. Klimetz
Columbite-Fe
[Lustrous Black Prismatic and Tabular Crystals in Quartz]
Midnight Owl Mine
White Picacho Mining District
Yavapai County
ARIZONA
Photographed by Michael P. Klimetz
[Lustrous Black Terminated Tabular Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
[Lustrous Black Terminated Tabular Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
[Lustrous Black Terminated Tabular Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
[Lustrous Black Terminated Tabular Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
[Lustrous Black Terminated Tabular Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
[Lustrous Black Terminated Tabular Crystal]
Golconda Pegmatite Field
Governador Valadares
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
[Lustrous Black Terminated Tabular Crystal]
Golconda Pegmatite Field
Governador Valadares
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
[Lustrous Silver-Black Crystal Fragments with Tantalite and Quartz]
Mount Farmer pegmatite
Western Australia
AUSTRALIA
Photographed by Michael P. Klimetz
[Lustrous Silver-Black Crystal Fragments with Tantalite and Quartz]
Mount Farmer pegmatite
Western Australia
AUSTRALIA
Photographed by Michael P. Klimetz
[Lustrous Metallic Black Crystals with Red-Brown Microlite in Pegmatite]
Ohio City
Gunnison County
COLORADO
Photographed by Michael P. Klimetz
[Lustrous Metallic Black Crystals with Red-Brown Microlite in Pegmatite]
Ohio City
Gunnison County
COLORADO
Photographed by Michael P. Klimetz
[Lustrous Metallic Black Crystalline Mass]
Ham and Weeks Mine
Wakefield
Carroll County
NEW HAMPSHIRE
Photographed by Michael P. Klimetz
[Dull Black Metallic Crystals with Dark Red Cyrtolite in Orthoclase Pegmatite]
Luster No. 1 Pegmatite
Jefferson County
COLORADO
Photographed by Michael P. Klimetz
[Dull Black Metallic Crystals with Dark Red Cyrtolite in Orthoclase Pegmatite]
Luster No. 1 Pegmatite
Jefferson County
COLORADO
Photographed by Michael P. Klimetz
[Dull Black Metallic Crystals with Dark Red Cyrtolite in Orthoclase Pegmatite]
Luster No. 1 Pegmatite
Jefferson County
COLORADO
Photographed by Michael P. Klimetz
[Lustrous Metallic Black Crystals in Pegmatite]
Ham and Weeks Mine
Wakefield
Carroll County
NEW HAMPSHIRE
Photographed by Michael P. Klimetz
[Lustrous Metallic Black Crystals in Pegmatite]
Ham and Weeks Mine
Wakefield
Carroll County
NEW HAMPSHIRE
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Terminated Near-Complete Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Terminated Near-Complete Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Terminated Near-Complete Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Terminated Near-Complete Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Terminated Near-Complete Crystal]
Minas Gerais
BRAZIL
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Partial Crystal]
Baylis Quarry
Bedford
Westchester County
NEW YORK
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Partial Crystal]
Baylis Quarry
Bedford
Westchester County
NEW YORK
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Partial Crystal]
Baylis Quarry
Bedford
Westchester County
NEW YORK
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Partial Crystal]
Baylis Quarry
Bedford
Westchester County
NEW YORK
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Crystals in Pegmatite]
Easthampton
Middlesex County
CONNECTICUT
Photographed by Michael P. Klimetz
Columbite-(Fe)
[Lustrous Black Crystals in Pegmatite]
Easthampton
Middlesex County
CONNECTICUT