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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Chalcopyrite from
Wheal Rose (Wheal Lomax), Porthleven, Cornwall, England, UK


Locality type:Mine
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Wheal Rose (Wheal Lomax), Porthleven, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:690174
Long-form Identifier:1:3:690174:5
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
0.7km (0.4 miles) ⓘWheal Penrose, Porthleven, Cornwall, England, UK
3.2km (2.0 miles) ⓘHanson Mines (Anson Mines), Porthleven, Cornwall, England, UK
3.7km (2.3 miles) ⓘSouth Wheal Fortune, Breage, Cornwall, England, UK
4.3km (2.7 miles) ⓘWheal Trewavas (Trewavas Cliff Mine), Rinsey, Breage, Cornwall, England, UK
4.3km (2.7 miles) ⓘWheal Susan, Sithney, Cornwall, England, UK
4.4km (2.7 miles) ⓘGreat Wheal Fortune, Breage, Cornwall, England, UK
5.0km (3.1 miles) ⓘWheal Metal, Carnmeal Downs, Breage, Cornwall, England, UK
5.3km (3.3 miles) ⓘWheal Trannack, Trannack, Wendron, Cornwall, England, UK
5.5km (3.4 miles) ⓘTreworlis Mine, Helston, Cornwall, England, UK
5.8km (3.6 miles) ⓘWheal Vor (Great Wheal Vor), Carleen, Breage, Cornwall, England, UK
References
Russell, Arthur, Hutchinson, A. (1927) On laurionite and associated minerals from Cornwall. Mineralogical Magazine and Journal of the Mineralogical Society, 21 (116). 221-228 doi:10.1180/minmag.1927.021.116.04
Dines, H. G. (1956) The Metalliferous Mining Region of South-West England (1st ed.) Vol. 1. Geological Survey of Great Britain, London.pp.241-242
 
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