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
Tresungers Point (incl. Tartar Cove), St Endellion, Cornwall, England, UK


Locality type:Point
Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Tresungers Point (incl. Tartar Cove), St Endellion, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:612404
Long-form Identifier:1:3:612404:5
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
1.4km (0.9 miles) ⓘBounds Cliff, St Endellion, Cornwall, England, UK
1.5km (1.0 miles) ⓘTreore Mine, St Endellion, Cornwall, England, UK
2.0km (1.2 miles) ⓘBarrett 's Zawn, St Teath, Cornwall, England, UK
4.4km (2.7 miles) ⓘTregardock Mine (Tregarget Mine), Treligga, St Teath, Cornwall, England, UK
4.9km (3.1 miles) ⓘOld Treburgett Mine, St Teath, Cornwall, England, UK
5.9km (3.7 miles) ⓘBackways Cove, Trebarwith, Tintagel, Cornwall, England, UK
7.1km (4.4 miles) ⓘTrebarwith Quarry, Trebarwith, Tintagel, Cornwall, England, UK
9.4km (5.9 miles) ⓘGreat Onslow Consols (Great Michell Consols), St Breward, Cornwall, England, UK
12.1km (7.5 miles) ⓘSouthern Merop Island, Gunver Head, Padstow, Cornwall, England, UK
14.2km (8.8 miles) ⓘPenbugle and Lancarffe Consols, Helland, Cornwall, England, UK
References
Clayton, R. E., Spiro, B. (2000) Sulphur, carbon and oxygen isotope studies of early Variscan mineralisation and Pb-Sb vein deposits in the Cornubian orefield: implications for the scale of fluid movements during Variscan deformation. Mineralium Deposita, 35 (4) 315-331 doi:10.1007/s001260050244
 
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