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
Lanterdan Quarry, Treknow, Tintagel, Cornwall, England, UK


Locality type:Quarry
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Lanterdan Quarry, Treknow, Tintagel, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:40872
Long-form Identifier:1:3:40872:5
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
3.1km (1.9 miles) ⓘTregardock Mine (Tregarget Mine), Treligga, St Teath, Cornwall, England, UK
5.8km (3.6 miles) ⓘBarrett 's Zawn, St Teath, Cornwall, England, UK
6.4km (4.0 miles) ⓘBounds Cliff, St Endellion, Cornwall, England, UK
7.2km (4.5 miles) ⓘTresungers Point (incl. Tartar Cove), St Endellion, Cornwall, England, UK
7.5km (4.7 miles) ⓘOld Treburgett Mine, St Teath, Cornwall, England, UK
7.7km (4.8 miles) ⓘTreore Mine, St Endellion, Cornwall, England, UK
8.4km (5.2 miles) ⓘTrewethen Mine, St Kew, Cornwall, England, UK
8.4km (5.2 miles) ⓘWheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Cornwall, England, UK
10.4km (6.4 miles) ⓘBeach and Cliff exposures, Port Quin, St Endellion, Cornwall, England, UK
13.0km (8.1 miles) ⓘPentireglaze Mine (Pentire Glaze Mine), Polzeath, St Minver, Cornwall, England, UK
References
W Gordon collection
 
and/or  
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