's Image Gallery

Metatorbernite: Cu(UO2)2(PO4)2·8(H2O)

Comments: Green, square, tabular crystals of metatorbernite on matrix.
Location: Wheal Basset, Illogan, Cornwall, England, UK. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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)  
Metatyuyamunite: Ca(UO2)2V2O8·3(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)

Comments: Bright yellow bladed crystals of metatyuyamunite.
Location: Mashamba mine, Kolwezi, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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)

Comments: Yellow crystals of meta-uranocircite.
Location: Krunkelbachtal, Baden-Wurttemberg, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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

Comments: Brilliant, fluorescent yellow green crystals of uranocircite altered to meta-uranocircite.
Location: Bergen, Vogtland, Saxony, Germany. Scale: 2.3 x 2.2 cm.
© John Veevaert

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)

Comments: Lemon yellow platy meta-uranocircite crystals on matrix.
Location: Schneeberg, Saxony, Germany. Scale: Crystal size 2 mm.
© Tom Loomis / Dakota Matrix

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

Metauranospinite: Ca(UO2)2(AsO4)2·8(H2O)  
Uranospinite: Ca(UO2)2(AsO4)2·10(H2O)

Comments: Translucent platy uranospinite (probably dehydrated to metauranospinite) microcrystals on matrix.
Location: Grube Buhlskopf, near Ellweiler, Rheinland-Pfalz, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Metavandendriesscheite: PbU7O22·n(H2O)(n<12)

Comments: Botryoidal crusts of orange metavandendriesscheite with red- to yellow-brown prismatic masyuite.
Location: Giftkiesstollen, Jachymov, Bohemia, Czech Republic. Scale: Not Given.
© Diederik Visser

Metavanmeersscheite: U++++++(UO2)3(PO4)2(OH)6·2(H2O)  
Vanmeersscheite: U++++++(UO2)3(PO4)2(OH)6·4(H2O)

Comments: Yellow coatings of vanmeersscheite on sandstone. Unless sealed in glass, all specimens should be considered to have become metavanmeersscheite.
Location: Cameron, Coconino Co., Arizona, USA. Scale: Sample Size 4 cm Glass Vial.
© Diederik Visser

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

Metavariscite: AlPO4·2(H2O)

Comments: Clear tabular crystals of metavariscite.
Location: Utahlite claim, Lucin, Box Elder County, Utah, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Metavauxite: Fe++Al2(PO4)2(OH)2·8(H2O)

Comments: Clear acicular crystals of metavauxite.
Location: Llallagua, Potosi Department, Bolivia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Metavauxite: Fe++Al2(PO4)2(OH)2·8(H2O)

Comments: Creamy colored prismatic metavauxite crystals to 3mm.
Location: Siglo XX, Llallagua, Bolivia. Scale: Picture size 3 mm.
© Tom Loomis / Dakota Matrix

Metavivianite: (Fe++3-x,Fe+++x)(PO4)2(OH)x·8-x(H2O), x=0.5

Comments: Rust-brown, metavivianite var. kertschenite crystals to 1.5 cm in length.
Location: Kertsch Crimea, Ukraine. Scale: 5.5 x 3.5 cm.
© John Veevaert

Metavoltine: K4Na4(Fe++,Zn)Fe+++6(SO4)12O2·20(H2O)  
Alunogen: Al2(SO4)3·17(H2O)

Comments: Yellow metavoltine with white alunogen.
Location: Carola Mine, Freital, near Dresden, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Metazellerite: Ca(UO2)(CO3)2·3(H2O)  
Voglite: Ca2Cu(UO2)(CO3)4·6(H2O)

Comments: Pale yellow crystalline metazellerite in matrix, with green voglite.
Location: White Canyon #1 Mine, Frey Point, San Juan County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species