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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Orthoclase from
Heavitree, Exeter, Devon, England, UK


Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Heavitree, Exeter, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:8309
Long-form Identifier:1:3:8309:6
GUID (UUID V4):0
Nearest other occurrences of Orthoclase
16.6km (10.3 miles) ⓘTottiford, Hennock, Teignbridge, Devon, England, UK
37.6km (23.4 miles) ⓘMeldon Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
37.9km (23.5 miles) ⓘMeldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
38.3km (23.8 miles) ⓘWheal Forest, Okehampton Hamlets, West Devon, Devon, England, UK
43.3km (26.9 miles) ⓘMerrivale Quarry, Whitchurch, West Devon, Devon, England, UK
44.2km (27.4 miles) ⓘNorth Mine (East Wheal Friendship), Devon United Mines, Peter Tavy, West Devon, Devon, England, UK
46.1km (28.6 miles) ⓘGreat Trowlesworthy Tor, Shaugh Prior, South Hams, Devon, England, UK
71.1km (44.2 miles) ⓘSouth Caradon Mine, Caradon Hill, St Cleer, Cornwall, England, UK
71.4km (44.4 miles) ⓘCheesewring Quarry, Minions, Linkinhorne, Cornwall, England, UK
72.0km (44.7 miles) ⓘCraddock Moor Mine, Craddock Moor, St Cleer, Cornwall, England, UK
References
Royal Cornwall Polytechnic Society (1870): 38. Annual Report, pp. 30-31
 
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