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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Chalcocite from
Wherry Mine, Wherrytown, Penzance, Cornwall, England, UK


Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Wherry Mine, Wherrytown, Penzance, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:690132
Long-form Identifier:1:3:690132:5
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
6.2km (3.9 miles) ⓘGwallon Mine, St Hilary, Cornwall, England, UK
6.3km (3.9 miles) ⓘDing Dong Mine, Boskednan, Madron, Cornwall, England, UK
6.6km (4.1 miles) ⓘWheal Fortune (West Wheal Fortune; Great Wheal Fortune), Truthwall, Ludgvan, Cornwall, England, UK
6.8km (4.2 miles) ⓘWheal Prosper, St Hilary, Cornwall, England, UK
8.3km (5.2 miles) ⓘWheal Reeth, Trencrom, Ludgvan, Cornwall, England, UK
8.9km (5.6 miles) ⓘPenberthy Croft Mine, St Hilary, Cornwall, England, UK
9.3km (5.8 miles) ⓘHalamanning Mine, St Hilary, Cornwall, England, UK
9.8km (6.1 miles) ⓘZennor Consols (Carnelloe Consols), Zennor, Cornwall, England, UK
10.1km (6.3 miles) ⓘWheal Speed, Providence Mines, Carbis Bay, St Ives, Cornwall, England, UK
10.4km (6.5 miles) ⓘWheal Providence, Providence Mines, Carbis Bay, St Ives, Cornwall, England, UK
References
Davy, Humphry (1818) Hints on the Geology of Cornwall. Transactions of the Royal Geological Society of Cornwall, 1. 38-50
 
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