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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Tennantite Subgroup from
Wheal Gorland, St Day, Cornwall, England, UK


09088140017368619157099.jpg
Tennantite Subgroup

Wheal Gorland, St Day, Cornwall, England, UK
09088140017368619157099.jpg
Tennantite Subgroup

Wheal Gorland, St Day, Cornwall, England, UK
08456940017368619168872.jpg
Tennantite Subgroup

Wheal Gorland, St Day, Cornwall, England, UK
Locality type:Mine
Classification
Species:'Tennantite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)As4S12S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tennantite Subgroup data
Locality Data:Click here to view Wheal Gorland, St Day, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:17887
Long-form Identifier:1:3:17887:9
GUID (UUID V4):0
Nearest other occurrences of Tennantite Subgroup
0.6km (0.4 miles) ⓘWheal Unity, Gwennap, Cornwall, England, UK
0.8km (0.5 miles) ⓘWest Wheal Jewel (Tolcarne Mine; North Wheal Damsel), St Day, Cornwall, England, UK
0.9km (0.6 miles) ⓘWheal Jewel, Gwennap, Cornwall, England, UK
1.1km (0.7 miles) ⓘCarharrack Mine, Gwennap, Cornwall, England, UK
1.6km (1.0 miles) ⓘWheal Virgin, Great Consolidated Mines, Clifford Amalgamated Mines, Gwennap, Cornwall, England, UK
2.2km (1.4 miles) ⓘUnited Mines (Gwennap United Mines), Clifford Amalgamated Mines, Gwennap, Cornwall, England, UK
3.6km (2.3 miles) ⓘTresavean Mine, Lanner, Lanner, Cornwall, England, UK
4.1km (2.6 miles) ⓘWheal Jane, Kea, Cornwall, England, UK
4.9km (3.0 miles) ⓘSouth Wheal Basset, Carnkie, Carn Brea, Cornwall, England, UK
5.0km (3.1 miles) ⓘWheal Druid, Carn Brea Mine, Pool, Carn Brea, Cornwall, England, UK
References
 
and/or  
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