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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Bismuthinite from
Penlee Quarry, Newlyn, Penzance, Cornwall, England, UK


Locality type:Quarry
Classification
Species:Bismuthinite
Formula:Bi2S3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bismuthinite data
Locality Data:Click here to view Penlee Quarry, Newlyn, Penzance, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:2063
Long-form Identifier:1:3:2063:3
GUID (UUID V4):0
Nearest other occurrences of Bismuthinite
8.5km (5.3 miles) ⓘBalleswidden Mine, St Just, Cornwall, England, UK
9.8km (6.1 miles) ⓘPenberthy Croft Mine, St Hilary, Cornwall, England, UK
10.5km (6.5 miles) ⓘCroft Gothal Mine, St Hilary, Cornwall, England, UK
10.9km (6.8 miles) ⓘBoscaswell Downs Mine, Pendeen, St Just, Cornwall, England, UK
11.3km (7.0 miles) ⓘWheal Owles, Botallack, St Just, Cornwall, England, UK
11.8km (7.3 miles) ⓘBotallack Mine, Botallack, St Just, Cornwall, England, UK
11.8km (7.3 miles) ⓘWheal Edward, Botallack, St Just, Cornwall, England, UK
12.0km (7.5 miles) ⓘLevant Mine, Trewellard, St Just, Cornwall, England, UK
12.1km (7.5 miles) ⓘWheal Cock, Botallack Mine, Botallack, St Just, Cornwall, England, UK
15.2km (9.5 miles) ⓘWheal Herland (Old Herland Mine; Manor Mine; North Wheal Herland), Rosewarne and Herland United Mines (Rosewarne and Herland Mine; incl. Wheal Fancy; Wheal Pleasure), Gwinear, Gwinear-Gwithian, Cornwall, England, UK
References
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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