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