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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Arsenopyrite from
Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK


Locality type:Pit
Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:991
Long-form Identifier:1:3:991:3
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
3.9km (2.4 miles) ⓘBlackpool China Clay Pit, Trewoon, St Mewan, Cornwall, England, UK
4.6km (2.8 miles) ⓘStenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, Cornwall, England, UK
6.1km (3.8 miles) ⓘPolmear Mine (incl. South Polmear Mine), Duporth, St Austell Bay, Cornwall, England, UK
6.6km (4.1 miles) ⓘPolgooth Mine (Old Polgooth Mine; Polgooth United Mine; Tregontrees and Old Polgooth Mine), Polgooth, St Mewan, Cornwall, England, UK
6.8km (4.3 miles) ⓘPolmear Cliff, Carlyon, Cornwall, England, UK
6.9km (4.3 miles) ⓘPrideaux Wood Mine (Wheal Kendall), Prideaux, Luxulyan (Luxullian), Cornwall, England, UK
6.9km (4.3 miles) ⓘCrinnis Mine (Great Crinnis Mine; Carlyon Consolidated Mine), Carlyon Bay, Carlyon, Cornwall, England, UK
7.1km (4.4 miles) ⓘSt Austell Consols (incl. Wheal Hawkins), Downderry, St Stephen-in-Brannel, Cornwall, England, UK
7.2km (4.5 miles) ⓘEast Wheal Strawberry (Wheal Unanimity), St Austell Consols (incl. Wheal Hawkins), Downderry, St Stephen-in-Brannel, Cornwall, England, UK
7.3km (4.6 miles) ⓘSouth Polgooth Mine (Wheal Davey; incl. New Hewas Mine), Little Polgooth, St Ewe, Cornwall, England, UK
References
Barstow, R. W. (1982) Variscite from Hensbarrow china clay works, St. Austell, Cornwall. Mineralogical Magazine, 46 (341) 512 doi:10.1180/minmag.1982.046.341.23
 
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