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
Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK


08430520017271971949423.jpg
Chalcocite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
00999140017271997474763.jpg
Chalcocite

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
02604870017271997484516.jpg
Chalcocite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
07686360017271997492467.jpg
Chalcocite

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
09114010017362367669118.jpg
Chalcocite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
00642520017362367675804.jpg
Chalcocite

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
02604870017271997484516.jpg
Chalcocite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
03471020017362367674705.jpg
Chalcocite

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
08430520017271971949423.jpg
Chalcocite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
00999140017271997474763.jpg
Chalcocite

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
02604870017271997484516.jpg
Chalcocite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
07686360017271997492467.jpg
Chalcocite

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Habit:Prismatic or tabular, also twinned; occasionally to several cms
Colour:Grey metallic
Quality for species:Excellent - world class for species or very significant. (!!)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Bornite7
Chalcopyrite1
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
Photo GalleryView Gallery (9 photos)
Data Identifiers
Mindat Occurrence Record ID:3397
Long-form Identifier:1:3:3397:8
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
0.3km (0.2 miles) ⓘCook's Kitchen Mine, Pool, Carn Brea, Cornwall, England, UK
0.4km (0.2 miles) ⓘWheal Fanny, Tregajorran, Carn Brea, Cornwall, England, UK
0.5km (0.3 miles) ⓘNew Cook's Kitchen Mine, Pool, Carn Brea, Cornwall, England, UK
0.5km (0.3 miles) ⓘSouth Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
0.8km (0.5 miles) ⓘNorth Wheal Crofty, Pool, Carn Brea, Cornwall, England, UK
0.9km (0.5 miles) ⓘDolcoath Mine, Camborne, Cornwall, England, UK
0.9km (0.5 miles) ⓘCarn Brea Mine, Pool, Carn Brea, Cornwall, England, UK
1.0km (0.6 miles) ⓘEast Pool Mine, Pool, Carn Brea, Cornwall, England, UK
1.2km (0.7 miles) ⓘNorth Wheal Frances (incl. Foxhole Mine), Bosleake, Carn Brea, Cornwall, England, UK
1.5km (1.0 miles) ⓘWheal Druid, Carn Brea Mine, Pool, Carn Brea, Cornwall, England, UK
References
Phillips, William (1823) An Elementary Introduction to Mineralogy (3rd ed.)
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.
 
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