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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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Pseudomalachite from
Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK


06656030017360511602362.jpg
Pseudomalachite

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
05326030017271996923045.jpg
Pseudomalachite, etc.

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
05660530017360817514393.jpg
Pseudomalachite, etc.

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
03772880017272005948335.jpg
Pseudomalachite

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
05326030017271996923045.jpg
Pseudomalachite, etc.

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
05660530017360817514393.jpg
Pseudomalachite, etc.

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
06656030017360511602362.jpg
Pseudomalachite

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
05326030017271996923045.jpg
Pseudomalachite, etc.

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
05660530017360817514393.jpg
Pseudomalachite, etc.

Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
Locality type:Mine
Classification
Species:Pseudomalachite
Formula:Cu5(PO4)2(OH)4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz2
Data
Mineral Data:Click here to view Pseudomalachite data
Locality Data:Click here to view Wheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:8895
Long-form Identifier:1:3:8895:4
GUID (UUID V4):0
Nearest other occurrences of Pseudomalachite
0.5km (0.3 miles) ⓘWheal Providence, Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
4.2km (2.6 miles) ⓘPenberthy Croft Mine, St Hilary, Cornwall, England, UK
4.7km (2.9 miles) ⓘCroft Gothal Mine, St Hilary, Cornwall, England, UK
7.6km (4.7 miles) ⓘTolcarne Mine, Beacon, Camborne, Cornwall, England, UK
7.7km (4.8 miles) ⓘSouth Tolcarne Mine, Beacon, Camborne, Cornwall, England, UK
11.4km (7.1 miles) ⓘWheal Basset, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK
15.6km (9.7 miles) ⓘWest Wheal Jewel (Tolcarne Mine; North Wheal Damsel), St Day, Cornwall, England, UK
16.2km (10.1 miles) ⓘWheal Gorland, St Day, Cornwall, England, UK
16.6km (10.3 miles) ⓘSt Day United Mines (Poldice Mines), Gwennap, Cornwall, England, UK
16.7km (10.4 miles) ⓘWest Wheal Virgin, Great Consolidated Mines, Clifford Amalgamated Mines, Gwennap, Cornwall, England, UK
References
Braithwaite, R. S. W., Ryback, G. (1994) Reichenbachite from Cornwall and Portugal. Mineralogical Magazine, 58 (392) 449-454 doi:10.1180/minmag.1994.058.392.09
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
Kloprogge, J. T., & Wood, B. J. (2017). X-ray Photoelectron spectroscopic and Raman spectroscopic study of bayldonite from Wheal Carpenter, Cornwall, UK. Vacuum, 141, 49-56.
 
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