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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Quartz from
Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:690304
Long-form Identifier:1:3:690304:6
GUID (UUID V4):0
Localities for Quartz in this Region
Wheal Lambo, Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
Wheal Providence, Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
Nearest other occurrences of Quartz
0.4km (0.2 miles) ⓘWheal Providence, Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
0.5km (0.3 miles) ⓘWheal Lambo, Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
0.7km (0.5 miles) ⓘWheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
0.8km (0.5 miles) ⓘCarzise Consols, Leedstown, Crowan, Cornwall, England, UK
1.1km (0.7 miles) ⓘWheal Kayle, Hayle, Cornwall, England, UK
2.0km (1.3 miles) ⓘRelistian Mine (Relistien Mine; Relistian Consols), Reawla, Gwinear-Gwithian, Cornwall, England, UK
2.1km (1.3 miles) ⓘWheal Strawberry (Wheal Julia), West Briton Mine (Crowan Consols), Leedstown, Crowan, Cornwall, England, UK
2.1km (1.3 miles) ⓘBinner Downs Mine, Leedstown, Crowan, Cornwall, England, UK
2.1km (1.3 miles) ⓘWheal Herland (Old Herland Mine; Manor Mine; North Wheal Herland), Rosewarne and Herland United Mines (Rosewarne and Herland Mine; incl. Wheal Fancy; Wheal Pleasure), Gwinear, Gwinear-Gwithian, Cornwall, England, UK
2.3km (1.4 miles) ⓘAlfred Consols (East Wheal Alfred; Laity Hills Mine), Great Wheal Alfred (Alfred Consols), Hayle, Cornwall, England, UK
References
Dines, H. G. (1956) The Metalliferous Mining Region of South-West England (1st ed.) Vol. 1. Geological Survey of Great Britain, London.pp.165-166
 
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