Paul M. Schumacher's Image Gallery

Uranophane: Ca(UO2)2SiO3(OH)2·5(H2O)

Comments: Bright yellow crystals of uranophane with black uraninite.
Location: Teofilo Otoni, Minas Gerais, Brazil. Scale: Picture size 3.5 mm.
© Paul M. Schumacher

Uranophane: Ca(UO2)2SiO3(OH)2·5(H2O)

Comments: Bright yellow crystals of uranophane with black uraninite.
Location: Teofilo Otoni, Minas Gerais, Brazil. Scale: Picture size 3.5 mm.
© Paul M. Schumacher

Uranopilite: [(UO2)6(SO4)O2(OH)6(H2O)6]·8(H2O)  
Johannite: Cu(UO2)2(SO4)2(OH)2·8(H2O)

Comments: Bright yellow rosettes of uranopilite with pale greenish yellow johannite on matrix.
Location: Apex Mine, Lander Co., Nevada, USA. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Uranopilite: [(UO2)6(SO4)O2(OH)6(H2O)6]·8(H2O)  
Johannite: Cu(UO2)2(SO4)2(OH)2·8(H2O)

Comments: Bright yellow rosettes of uranopilite with pale greenish yellow johannite on matrix.
Location: Apex Mine, Lander Co., Nevada, USA. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Vandenbrandeite: Cu(UO2)(OH)4

Comments: Dark green vandenbrandeite crystal showing termination details.
Location: Musonoi Mine, Kolwezi, Western area, Shaba Cu belt, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 3.5 cm.
© Paul M. Schumacher

Vandenbrandeite: Cu(UO2)(OH)4

Comments: Dark green vandenbrandeite crystal showing termination details.
Location: Musonoi Mine, Kolwezi, Western area, Shaba Cu belt, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 3.5 cm.
© Paul M. Schumacher

Walpurgite: Bi4(UO2)(AsO4)2O4·2(H2O)

Comments: Elongated, pale yellow, triclinic crystalline aggregate of walpurgite on calcite.
Location: Walpurgis Flacher vein, Weißer Hirsch Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Crystal size 1 cm.
© Paul M. Schumacher

Walpurgite: Bi4(UO2)(AsO4)2O4·2(H2O)

Comments: Elongated, pale yellow, triclinic crystalline aggregate of walpurgite on calcite.
Location: Walpurgis Flacher vein, Weißer Hirsch Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Crystal size 1 cm.
© Paul M. Schumacher

Weeksite: K2(UO2)2Si6O15·4(H2O)

Comments: Globular masses of yellow weeksite crystals with white aragonite on a sandstone matrix.
Location: Jackpile Mine, Laguna District, Cibola County, New Mexico, USA. Scale: Picture size 1 cm.
© Paul M. Schumacher

Weeksite: K2(UO2)2Si6O15·4(H2O)

Comments: Globular masses of yellow weeksite crystals with white aragonite on a sandstone matrix.
Location: Jackpile Mine, Laguna District, Cibola County, New Mexico, USA. Scale: Picture size 1 cm.
© Paul M. Schumacher

Zeunerite: Cu(UO2)2(AsO4)2·10-16(H2O)

Comments: Thin, tabular crystals of Zeunerite on matrix.
Location: Cinovec, Erzgebirge, the Czech Republic. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Zeunerite: Cu(UO2)2(AsO4)2·10-16(H2O)

Comments: Thin, tabular crystals of Zeunerite on matrix.
Location: Cinovec, Erzgebirge, the Czech Republic. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Zippeite: K4(UO2)6(SO4)3(OH)10·4(H2O)

Comments: Sandstone with a 1.5 cm vein of black uraninite bisected with a 2mm vein of bright yellow zippeite.
Location: Jackpot Mine, Laguna Mining District, Cibole City, New Mexico. Scale: 4.8 cm high.
© Paul M. Schumacher

Zippeite: K4(UO2)6(SO4)3(OH)10·4(H2O)

Comments: Sandstone with a 1.5 cm vein of black uraninite bisected with a 2mm vein of bright yellow zippeite.
Location: Jackpot Mine, Laguna Mining District, Cibole City, New Mexico. Scale: 4.8 cm high.
© Paul M. Schumacher

Zirkelite: (Ca,Th,Ce)Zr(Ti,Nb)2O7

Comments: Black, massive aggregate of zirkelite with minor brown biotite and a thin vein of white calcite.
Location: Palabora Open Pit mine, Loolekop, Phalaborwa, Limpopo Province, Transvaal, Republic of South Africa. Scale: Picture size 1.5 cm.
© Paul M. Schumacher

Zirkelite: (Ca,Th,Ce)Zr(Ti,Nb)2O7

Comments: Black, massive aggregate of zirkelite with minor brown biotite and a thin vein of white calcite.
Location: Palabora Open Pit mine, Loolekop, Phalaborwa, Limpopo Province, Transvaal, Republic of South Africa. Scale: Picture size 1.5 cm.
© Paul M. Schumacher

Znucalite: CaZn11(UO2)(CO3)3(OH)20·4(H2O)

Comments: Very pale bluish white, porcelaneous crust of znucalite on matrix.
Location: Mine dump near: Pribam, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Paul M. Schumacher

Znucalite: CaZn11(UO2)(CO3)3(OH)20·4(H2O)

Comments: Very pale bluish white, porcelaneous crust of znucalite on matrix.
Location: Mine dump near: Pribam, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Paul M. Schumacher