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
Megiliggar Rocks (Tremearne pegmatite), Breage, Cornwall, England, UK


Locality type:Outcrop
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Schorl11
Fluorapatite6
Orthoclase4
Muscovite4
- var Gilbertite1
Apatite2
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Megiliggar Rocks (Tremearne pegmatite), Breage, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:213546
Long-form Identifier:1:3:213546:5
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.7km (0.4 miles) ⓘWheal Trewavas (Trewavas Cliff Mine), Rinsey, Breage, Cornwall, England, UK
1.8km (1.1 miles) ⓘRinsey Head, Rinsey, Breage, Cornwall, England, UK
2.9km (1.8 miles) ⓘGreat Wheal Fortune, Breage, Cornwall, England, UK
3.2km (2.0 miles) ⓘWheal Penrose, Porthleven, Cornwall, England, UK
3.4km (2.1 miles) ⓘLady Gwendolen Mine, Germoe, Cornwall, England, UK
3.4km (2.1 miles) ⓘTregonning Hill, Breage, Cornwall, England, UK
3.8km (2.4 miles) ⓘWheal Rose (Wheal Lomax), Porthleven, Cornwall, England, UK
4.0km (2.5 miles) ⓘWheal Vor (Great Wheal Vor), Carleen, Breage, Cornwall, England, UK
4.1km (2.6 miles) ⓘWheal Reeth, Boscreege, Germoe, Cornwall, England, UK
4.2km (2.6 miles) ⓘGreat Work Mine (incl. Leeds Mine), Godolphin Cross, Breage, Cornwall, England, UK
References
George, M. C., Stone, M., Fejer, E. E., Symes, R.F. (1981) Triplite from the Megiliggar Rocks, Cornwall. Mineralogical Magazine, 44 (334) 236-238 doi:10.1180/minmag.1981.044.334.20
Econ Geol (1995) 90:495-519
 
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