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
Crinnis Mine (Great Crinnis Mine; Carlyon Consolidated Mine), Carlyon Bay, Carlyon, Cornwall, England, UK


07536090017363336342161.jpg
Chalcocite, etc.

Crinnis Mine, Carlyon Bay, Carlyon, Cornwall, England, UK
07536090017363336342161.jpg
Chalcocite, etc.

Crinnis Mine, Carlyon Bay, Carlyon, Cornwall, England, UK
01642950017272728446627.jpg
Chalcocite, etc.

Crinnis Mine, Carlyon Bay, Carlyon, Cornwall, England, UK
Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz1
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Crinnis Mine (Great Crinnis Mine; Carlyon Consolidated Mine), Carlyon Bay, Carlyon, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:192116
Long-form Identifier:1:3:192116:8
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
1.2km (0.8 miles) ⓘWheal Eliza (Boscundle Mine), Carlyon, Cornwall, England, UK
1.2km (0.8 miles) ⓘEast Crinnis Mine (incl. Wheal Rowe), South Par Mine, St Blaise, Cornwall, England, UK
1.4km (0.9 miles) ⓘPembroke Mine, South Par Mine, St Blaise, Cornwall, England, UK
3.3km (2.0 miles) ⓘWest Polmear Mine (Carvath United Mine; Carvath Mine; Wheal Change), St Austell, Cornwall, England, UK
4.4km (2.7 miles) ⓘLanescot Mine, Fowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath and Par, Cornwall, England, UK
4.7km (2.9 miles) ⓘFowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath and Par, Cornwall, England, UK
4.9km (3.0 miles) ⓘNew Fowey Consols, Lanlivery, Cornwall, England, UK
6.9km (4.3 miles) ⓘGunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
7.8km (4.8 miles) ⓘOld Beam Mine (Great Beam Mine), Bugle, Treverbyn, Cornwall, England, UK
8.7km (5.4 miles) ⓘSt Austell Consols (incl. Wheal Hawkins), Downderry, St Stephen-in-Brannel, 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
 
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