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
South Wheal Towan, Porthtowan, St Agnes, Cornwall, England, UK


07167150017368446152620.jpg
Chalcopyrite

South Wheal Towan, Porthtowan, St Agnes, Cornwall, England, UK
07167150017368446152620.jpg
Chalcopyrite

South Wheal Towan, Porthtowan, St Agnes, Cornwall, England, UK
01300610017271997278597.jpg
Chalcopyrite

South Wheal Towan, Porthtowan, St Agnes, 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 South Wheal Towan, Porthtowan, St Agnes, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:3278
Long-form Identifier:1:3:3278:0
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
0.4km (0.2 miles) ⓘTywarnhayle Mine (Wheal Rock), Porthtowan, St Agnes, Cornwall, England, UK
0.4km (0.3 miles) ⓘWheal Charles (South Wheal Grambler), Tywarnhayle Mine (Wheal Rock), Porthtowan, St Agnes, Cornwall, England, UK
0.6km (0.4 miles) ⓘWheal Sparrow, Wheal Clarence (Nancekuke Mine; incl. New Dolcoath Mine), Porthtowan, St Agnes, Cornwall, England, UK
0.7km (0.4 miles) ⓘNew Wheal Towan (Wheal Fox), Wheal Clarence (Nancekuke Mine; incl. New Dolcoath Mine), Porthtowan, St Agnes, Cornwall, England, UK
0.8km (0.5 miles) ⓘWheal Vincent, Wheal Lushington (West Wheal Towan), Porthtowan, St Agnes, Cornwall, England, UK
0.9km (0.5 miles) ⓘWheal Towan (Towan Consols), Porthtowan, St Agnes, Cornwall, England, UK
0.9km (0.5 miles) ⓘLushington Cove, Porthtowan, St Agnes, Cornwall, England, UK
0.9km (0.6 miles) ⓘWheal Music, Porthtowan, St Agnes, Cornwall, England, UK
1.0km (0.6 miles) ⓘWheal Fancy, East Tywarnhayle Mine, Porthtowan, St Agnes, Cornwall, England, UK
1.3km (0.8 miles) ⓘEast Wheal Towan, Wheal Towan (Towan Consols), Porthtowan, St Agnes, Cornwall, England, UK
References
Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386
Hall, Townshend M. (1868) The Mineralogist's Directory: or, a guide to the Principal Mineral Localities in the United Kingdom of Great Britain and Ireland. Edward Stanford.
Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro.
 
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