Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Zeunerite from
Wheal Gorland, St Day, Cornwall, England, UK


Locality type:Mine
Classification
Species:Zeunerite
Formula:Cu(UO2)2(AsO4)2 · 12H2O
Comments:Kingsbury reference. Kingsbury and Hartley (1960): A sample of this material, examined shortly after collection, was shown to be zeunerite, with n 1.608 +- 0.001 and giving X-ray powder-pattern spacings almost identical with those for synthetic hydrous zeunerite given by J. Weiss-Frondel in Amer. Min., 1951, vol. 36, p. 252, and distinct from those of meta-zeunerite with 5-8 H2O."
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Zeunerite data
Locality Data:Click here to view Wheal Gorland, St Day, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:12110
Long-form Identifier:1:3:12110:9
GUID (UUID V4):0
Nearest other occurrences of Zeunerite
0.6km (0.4 miles) ⓘWheal Unity, Gwennap, Cornwall, England, UK
1.2km (0.7 miles) ⓘWheal Maid, Gwennap, Cornwall, England, UK
2.0km (1.2 miles) ⓘTing Tang Mine, Carharrack, Cornwall, England, UK
3.6km (2.3 miles) ⓘTresavean Mine, Lanner, Lanner, Cornwall, England, UK
4.9km (3.0 miles) ⓘWheal Basset, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK
22.4km (13.9 miles) ⓘSouth Terras Mine (Resugga & Tolgarrick Mine; Union Mine; Uranium Mine), St Stephen-in-Brannel, Cornwall, England, UK
38.0km (23.6 miles) ⓘWest Wheal Owles (Cargodna Mine), Botallack, St Just, Cornwall, England, UK
38.1km (23.7 miles) ⓘLoe Warren Zawn, Botallack, St Just, Cornwall, England, UK
38.1km (23.7 miles) ⓘWheal Edward, Botallack, St Just, Cornwall, England, UK
58.8km (36.5 miles) ⓘGreat Roughtor Consols, St Clether, Cornwall, England, UK
References
Kingsbury, A.W.G. (1954) New occurrences of rare copper and other minerals in Devon and Cornwall. Transactions of the Royal Geological Society of Cornwall, 18 (4) 386-406p.396
Kingsbury, Arthur W. G., Hartley, J. (1960) Carminite and beudantite from the northern part of the Lake District and from Cornwall. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (249) 423-432 doi:10.1180/minmag.1960.032.249.01
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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