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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Wurtzite from
Lockridge Mine (Goldstreet Mine), East Tamar Consols, Bere Alston Mines, Bere Ferrers, West Devon, Devon, England, UK


Locality type:Mine
Classification
Species:Wurtzite
Formula:(Zn,Fe)S
Comments:"Ice fern"-like intergrowths with sphalerite, argentiferous tetrahedrite, tennantite and galena.
Confirmation
Validity:Unconfirmed/Questioned
Associated Minerals:
Associates:Galena
Silver-bearing Tetrahedrite
Sphalerite
Tennantite Subgroup
Data
Mineral Data:Click here to view Wurtzite data
Locality Data:Click here to view Lockridge Mine (Goldstreet Mine), East Tamar Consols, Bere Alston Mines, Bere Ferrers, West Devon, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:460629
Long-form Identifier:1:3:460629:1
GUID (UUID V4):0
Nearest other occurrences of Wurtzite
1.9km (1.2 miles) ⓘSouth Tamar Consols (South Tamar Mine; Cowes Mine; incl. Cleave Mine; Birch Mine), Bere Alston Mines, Bere Ferrers, West Devon, Devon, England, UK
44.2km (27.5 miles) ⓘGunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
70.5km (43.8 miles) ⓘWheal Jane, Kea, Cornwall, England, UK
73.7km (45.8 miles) ⓘWheal Unity, Gwennap, Cornwall, England, UK
94.4km (58.6 miles) ⓘPenberthy Croft Mine, St Hilary, Cornwall, England, UK
References
Grguric, B. A., Nickel, E. H. (2006) Acicular Wurtzite and Sphalerite from the Lockridge Mine, Bere Alston, Devon. UK Journal of Mines and Minerals 27, 39-40
 
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