The first British occurrence of arsenogoyazite at Wheal Cock, St Just, Cornwall

Belson, Richard; Green, Dirk and Tindle, Andrew G. (2005). The first British occurrence of arsenogoyazite at Wheal Cock, St Just, Cornwall. UK Journal of Mines and Minerals, 26 pp. 27–28.

URL: http://www.ukjmm.co.uk/no26.htm#cock

Abstract

Arsenogoyazite occurs as opaque white pseudo-cubic crystals in cavities in quartz veinstone collected from the dumps at Wheal Cock, St Just, Cornwall. The crystals show complex chemical substitutions. They are fluoride, sulphate and phosphate-rich and contain significant calcium and barium. This is the first report of arsenogoyazite in the British Isles.

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