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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Pyrite from
Balmynheer Mine, Porkellis, Wendron, Cornwall, England, UK


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Balmynheer Mine, Porkellis, Wendron, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:690373
Long-form Identifier:1:3:690373:2
GUID (UUID V4):0
Nearest other occurrences of Pyrite
1.7km (1.1 miles) ⓘGarlidna Mine, Garlidna United Mines, Porkellis, Wendron, Cornwall, England, UK
1.8km (1.1 miles) ⓘBassett & Grylls Mine (Porkellis Mine; Porkellis Tin Mines; Wheal Jantar; Balwath Mine), Porkellis, Wendron, Cornwall, England, UK
2.7km (1.7 miles) ⓘFatwork Mine, East Wheal Lovell (incl. Tregonebris Mine), Trewennack, Wendron, Cornwall, England, UK
3.4km (2.1 miles) ⓘHalvosso Quarry (Halvasso Quarry; Kessel Downs Quarry), Mabe, Cornwall, England, UK
3.5km (2.2 miles) ⓘWheal Roots (Poldark Mine), Trenear, Wendron, Cornwall, England, UK
3.8km (2.4 miles) ⓘTrolvis Quarry, Longdowns, Stithians, Cornwall, England, UK
4.3km (2.7 miles) ⓘSouth Wendron Mine (South Wheal Lovell; Lovell Consols), Trewennack, Wendron, Cornwall, England, UK
4.4km (2.7 miles) ⓘChywoon Quarry, Mabe, Cornwall, England, UK
4.6km (2.8 miles) ⓘBuller and Basset United Mine, Four Lanes, Carn Brea, Cornwall, England, UK
4.7km (2.9 miles) ⓘForest Mine, Four Lanes, Carn Brea, Cornwall, England, UK
References
Dominy, S.C., Camm, G.S., and Bussell, M.A. (1996): Proceedings of the Ussher Society 9, 97-104.
 
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