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 Lambo, 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 Lambo, Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:690308
Long-form Identifier:1:3:690308:4
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.5km (0.3 miles) ⓘWheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
0.7km (0.4 miles) ⓘCarzise Consols, Leedstown, Crowan, Cornwall, England, UK
0.9km (0.6 miles) ⓘWheal Providence, Wheal Tremayne, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
1.2km (0.8 miles) ⓘWheal Carpenter, Fraddam, Gwinear-Gwithian, Cornwall, England, UK
1.6km (1.0 miles) ⓘBinner Downs Mine, Leedstown, Crowan, Cornwall, England, UK
1.6km (1.0 miles) ⓘWheal Kayle, Hayle, Cornwall, England, UK
1.6km (1.0 miles) ⓘWheal Strawberry (Wheal Julia), West Briton Mine (Crowan Consols), Leedstown, Crowan, Cornwall, England, UK
1.9km (1.2 miles) ⓘRelistian Mine (Relistien Mine; Relistian Consols), Reawla, Gwinear-Gwithian, Cornwall, England, UK
2.1km (1.3 miles) ⓘSouth Parbola Mine (Wheal Jennings; Parbola Mine), Reawla, Gwinear-Gwithian, Cornwall, England, UK
2.1km (1.3 miles) ⓘNorth Parbola Mine, Reawla, Gwinear-Gwithian, 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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