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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Amethyst from
Wheal Unity, Gwennap, Cornwall, England, UK


04380920017797076691234.jpg
Amethyst

Wheal Unity, Gwennap, Cornwall, England, UK
04380920017797076691234.jpg
Amethyst

Wheal Unity, Gwennap, Cornwall, England, UK
09033920017797067034818.jpg
Amethyst

Wheal Unity, Gwennap, Cornwall, England, UK
Locality type:Mine
Classification
Species:Quartz var: Amethyst
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Amethyst data
Locality Data:Click here to view Wheal Unity, Gwennap, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:548353
Long-form Identifier:1:3:548353:2
GUID (UUID V4):0
Nearest other occurrences of Amethyst
2.0km (1.2 miles) ⓘAle and Cakes Mine, United Mines (Gwennap United Mines), Clifford Amalgamated Mines, Gwennap, Cornwall, England, UK
2.4km (1.5 miles) ⓘCathedral Mine, Busveal, St Day, Cornwall, England, UK
2.7km (1.7 miles) ⓘWheal Grambler (East Wheal Sparnon), St Day, Cornwall, England, UK
3.5km (2.2 miles) ⓘPednandrea Mine (Pedn-an-Drea Mine), Redruth, Cornwall, England, UK
3.5km (2.2 miles) ⓘWheal Jane, Kea, Cornwall, England, UK
4.6km (2.9 miles) ⓘWheal Buller, Wheal Buller and Beauchamp, Redruth, Cornwall, England, UK
4.7km (2.9 miles) ⓘWheal Uny, Redruth, Cornwall, England, UK
6.5km (4.0 miles) ⓘEast Pool Mine, Pool, Carn Brea, Cornwall, England, UK
8.0km (5.0 miles) ⓘDolcoath Mine, Camborne, Cornwall, England, UK
8.5km (5.3 miles) ⓘSeal Hole Mine, St Agnes Consols (Polberro Consols), St Agnes, Cornwall, England, UK
References
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.
Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro.
 
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