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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Petalite from
Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK


08793810017362188235195.jpg
Petalite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
08793810017362188235195.jpg
Petalite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
04730320017362188251270.jpg
Petalite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
Locality type:Quarry
Classification
Species:Petalite
Formula:LiAl(Si4O10)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Aplite1
Data
Mineral Data:Click here to view Petalite data
Locality Data:Click here to view Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:13722
Long-form Identifier:1:3:13722:5
GUID (UUID V4):0
References
McLintock, W. F. P. (1923) On the occurrence of petalite and pneumatolytic apatite in the Meldon aplite, Okehampton, Devonshire. Mineralogical Magazine and Journal of the Mineralogical Society, 20 (103). 140-150 doi:10.1180/minmag.1923.020.103.03
Knorring, Oleg von, Condliffe, Eric (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48 (348) 443-448 doi:10.1180/minmag.1984.048.348.16
johnblanchard.net (2021) http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
 
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