Paul M. Schumacher's Image Gallery

Meta-autunite: Ca(UO2)2(PO4)2·2-6(H2O)  
Autunite: Ca(UO2)2(PO4)2·10-12(H2O)

Comments: Corner of a meta-autunite crystal showing the dehydration of autunite (dark green) to meta-autunite (lighter yellowish green)..
Location: Daybreak Mine, Spokane County, Washington, U.S.A.. Scale: See Image.
© Paul M. Schumacher

Meta-autunite: Ca(UO2)2(PO4)2·2-6(H2O)  
Autunite: Ca(UO2)2(PO4)2·10-12(H2O)

Comments: Corner of a meta-autunite crystal showing the dehydration of autunite (dark green) to meta-autunite (lighter yellowish green)..
Location: Daybreak Mine, Spokane County, Washington, U.S.A.. Scale: See Image.
© Paul M. Schumacher

Metaheinrichite: Ba(UO2)2(AsO4)2·8(H2O)

Comments: Very pale greenish crystals of metaheinrichite on matrix.
Location: Schmiedestollenhalde mine, Wittichen, Schenkenzell, Schwartzwald (Black Forest), Baden-Württemberg, Germany. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Metaheinrichite: Ba(UO2)2(AsO4)2·8(H2O)

Comments: Very pale greenish crystals of metaheinrichite on matrix.
Location: Schmiedestollenhalde mine, Wittichen, Schenkenzell, Schwartzwald (Black Forest), Baden-Württemberg, Germany. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Metatorbernite: Cu(UO2)2(PO4)2·8(H2O)  
Schoepite: (UO2)8O2(OH)12·12(H2O)

Comments: Green, tabular crystals of metatorbernite and acicular, yellow schoepite on matrix.
Location: Musonoi mine, Kolwezi, Shaba, (Katanga), Congo (Zaïre). Scale: Picture size 2.5 mm.
© Paul M. Schumacher

Metatorbernite: Cu(UO2)2(PO4)2·8(H2O)  
Schoepite: (UO2)8O2(OH)12·12(H2O)

Comments: Green, tabular crystals of metatorbernite and acicular, yellow schoepite on matrix.
Location: Musonoi mine, Kolwezi, Shaba, (Katanga), Congo (Zaïre). Scale: Picture size 2.5 mm.
© Paul M. Schumacher

Metatyuyamunite: Ca(UO2)2V2O8·3(H2O)  
Metatorbernite: Cu(UO2)2(PO4)2·8(H2O)

Comments: Yellow, platy metatyuyamunite and transparent, tabular green metatorbernite crystals with a minor amount of white, snowy-looking saleeite.
Location: Mashamba West Mine, Kolwezi, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Metatyuyamunite: Ca(UO2)2V2O8·3(H2O)  
Metatorbernite: Cu(UO2)2(PO4)2·8(H2O)

Comments: Yellow, platy metatyuyamunite and transparent, tabular green metatorbernite crystals with a minor amount of white, snowy-looking saleeite.
Location: Mashamba West Mine, Kolwezi, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Metauranocircite: Ba(UO2)2(PO4)2·6-8(H2O)  
Uranocircite: Ba(UO2)2(PO4)2·12(H2O)

Comments: Crystal fragment of uranocircite fracturing due to dehydration to meta-uranocircite. The most common are 100 and 010 fractures, with 110 close behind. But notice the 210 and 410 fractures (breaks) as well.
Location: . Scale: Crystal size 2x3.5 cm.
© Paul M. Schumacher

Metauranocircite: Ba(UO2)2(PO4)2·6-8(H2O)  
Uranocircite: Ba(UO2)2(PO4)2·12(H2O)

Comments: Crystal fragment of uranocircite fracturing due to dehydration to meta-uranocircite. The most common are 100 and 010 fractures, with 110 close behind. But notice the 210 and 410 fractures (breaks) as well.
Location: . Scale: Crystal size 2x3.5 cm.
© Paul M. Schumacher

Metauranopilite: (UO2)6(SO4)(OH)10·5(H2O)

Comments: Orange-brown aggregates of metauranopilite with yellow green johannite on matrix. Unless sealed in glass, all uranopilite specimens should be considered to have become metauranopilite within a few months of being exposed to ambient air.
Location: Apex Mine, Lander Co., Nevada, USA. Scale: See Image.
© Paul M. Schumacher

Metauranopilite: (UO2)6(SO4)(OH)10·5(H2O)

Comments: Orange-brown aggregates of metauranopilite with yellow green johannite on matrix. Unless sealed in glass, all uranopilite specimens should be considered to have become metauranopilite within a few months of being exposed to ambient air.
Location: Apex Mine, Lander Co., Nevada, USA. Scale: See Image.
© Paul M. Schumacher

Metavanuralite: Al(UO2)2(VO4)2(OH)·8(H2O)  
Vanuralite: Al(UO2)2(VO4)2(OH)·11(H2O)

Comments: Bright yellow crystals of metavanuralite. Unless sealed in glass, all specimens of vanuralite change to metavanuralite.
Location: Mounana mine (Mouana), Franceville, Haut-Ogooue, Gabon. Scale: See Image.
© Paul M. Schumacher

Metavanuralite: Al(UO2)2(VO4)2(OH)·8(H2O)  
Vanuralite: Al(UO2)2(VO4)2(OH)·11(H2O)

Comments: Bright yellow crystals of metavanuralite. Unless sealed in glass, all specimens of vanuralite change to metavanuralite.
Location: Mounana mine (Mouana), Franceville, Haut-Ogooue, Gabon. Scale: See Image.
© Paul M. Schumacher

Natrozippeite: Na4(UO2)6(SO4)3(OH)10·4(H2O)

Comments: Yellow encrustations of sodium-zippeite on matrix.
Location: Kovagoszolos, Mecsek Mts., Pecs Co., Hungary. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Natrozippeite: Na4(UO2)6(SO4)3(OH)10·4(H2O)

Comments: Yellow encrustations of sodium-zippeite on matrix.
Location: Kovagoszolos, Mecsek Mts., Pecs Co., Hungary. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Novacekite: Mg(UO2)2(AsO4)2·12(H2O)

Comments: Scanner image of massive, yellow novacekite covering matrix.
Location: Serra das Éguas,Bahia, Northeast Region, Brazil. Scale: Specimen size 4.1 cm.
© Paul M. Schumacher

Novacekite: Mg(UO2)2(AsO4)2·12(H2O)

Comments: Scanner image of massive, yellow novacekite covering matrix.
Location: Serra das Éguas,Bahia, Northeast Region, Brazil. Scale: Specimen size 4.1 cm.
© Paul M. Schumacher

Oswaldpeetersite: (UO2)2CO3(OH)2·4(H2O)

Comments: Greenish-yellow, acicular, radial-spherical blebs of oswaldpeetersite on matrix.
Location: Jomac Mine, San Juan County, Utah, USA. Scale: Picture size 5 mm.
© Paul M. Schumacher

Oswaldpeetersite: (UO2)2CO3(OH)2·4(H2O)

Comments: Greenish-yellow, acicular, radial-spherical blebs of oswaldpeetersite on matrix.
Location: Jomac Mine, San Juan County, Utah, USA. Scale: Picture size 5 mm.
© Paul M. Schumacher