...Andrew J. Locock; Peter C. Burns Abstract Torbernite, Cu[(UO 2 )(PO 4 )] 2 (H 2 O) 12 , zeunerite, Cu[(UO 2 )(AsO 4 )] 2 (H 2 O) 12 , metatorbernite, Cu[(UO 2 )(PO 4 )] 2 (H 2 O) 8 and metazeunerite, Cu[(UO 2 )(AsO 4 )] 2 (H 2 O) 8 were synthesized directly by diffusion in gels or by hydrothermal...

...Judith Weiss Frondel Abstract X -ray study by the Weissenberg method on zeunerite from Tintic, Utah, gave a space group P 4 / nmm − D 4 h 7 and cell dimensions a 0 =7.13 Å, c 0 =8.83 Å, with a 0 : c 0 =1:1.238. The unit cell contents are Cu(UO 2 ) 2 (AsO 4 ) 2 · 8H 2 O. The calculated specific...

...Harold Douglas Wright; Donald Orville Emerson Abstract Weathering of pitchblende in the "siliceous reef" deposit at the W. Wilson mine, near Clancy, Montana, has produced an assemblage of secondary uranium minerals, including meta-autunite, meta-uranocircite, meta-torbernite, meta-zeunerite...

... the host lithologies reacted under ambient conditions with galena and native arsenic, forming a variety of U +VI (±Pb)-bearing arsenates such as hügelite, hallimondite, zeunerite, heinrichite, or novacekite together with U-free minerals like mimetite or anglesite. Some parts of the vein were enriched to U...

...Fig. 2 Photomicrograph of the surface of aggregates of honzaite consisting of tiny prismatic crystals; the association includes greenish tabular crystals of Ni-containing zeunerite. Field of view 1 mm; photo J. Sejkora. ...

...Figure 9 P/As ratios leading to zeunerite and torbernite formation, respectively, based on different thermodynamic data, depending on pH. ...

... the deposit indicate that uranium has migrated less than 100 feet downslope from the ore body. Radioactive minerals include pitchblende, schoepite, ianthinite, epi-ianthinite, bec-querelite, soddyite, boltwoodite, uranophane, zeunerite, metazeunerite, and a hydrated autunite. Other minerals are tetrahedrite...

..., and to a phosphate oxygen atom. The copper atoms are also bonded to two uranyl-oxygen atoms; thus the coordination polyhedra about the copper cations is in the form of an asymmetrical tetragonal dipyramid. X-ray powder data for meta-torbemite are given. Unit-cell data for meta-zeunerite, Cu(UO 2 AsO 4 ) 2 ·8H 2 O...

...D. O. Emerson; H. D. Wright Abstract Secondary uranium minerals found in the W. Wilson mine, near Clancy, Montana, include meta-autunite, meta-uranocircite, meta-torbernite, meta-zeunerite, uranophane, beta-uranophane, phosphuranylite, gummite, and an unidentified mineral, possibly a complex...

... , 1958) questioned the identity of uranospathite based on examinations of type and non-type material, and concluded that it is a more highly hydrated member of the torbernite–zeunerite series: Cu[(UO 2 )(PO 4 )] 2 (H 2 O) 12 –Cu[(UO 2 )(AsO 4 )] 2 (H 2 O) 12 . Hallimond (1954) agreed...

..., with at least fourteen mineral species described ( e.g ., Gaines et al . 1997 , Mandarino & Back 2004 ). However, with the exception of the copper-bearing species (torbernite, zeunerite, metatorbernite and metazeunerite), these minerals are relatively rare. The copper-bearing species also differ...

... his remarkable collection of antique books on scientific subjects. Robert F. Martin References Hogarth, D.D. (1951) Studies of radioactive compounds. II. Meta-zeunerite, uranophane, kasolite and cuprosklodowskite in Canada...