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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Rock Crystal from
North Wheal Crofty, Pool, Carn Brea, Cornwall, England, UK


Locality type:Mine
Classification
Species:Quartz var: Rock Crystal
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Rock Crystal data
Locality Data:Click here to view North Wheal Crofty, Pool, Carn Brea, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:548402
Long-form Identifier:1:3:548402:7
GUID (UUID V4):0
Nearest other occurrences of Rock Crystal
0.9km (0.6 miles) ⓘEast Pool Mine, Pool, Carn Brea, Cornwall, England, UK
1.0km (0.6 miles) ⓘNorth Roskear Mine, North Roskear, Camborne, Cornwall, England, UK
1.0km (0.6 miles) ⓘDolcoath Mine, Camborne, Cornwall, England, UK
1.4km (0.9 miles) ⓘCarn Brea Mine, Pool, Carn Brea, Cornwall, England, UK
3.5km (2.2 miles) ⓘSouth Wheal Basset, Carnkie, Carn Brea, Cornwall, England, UK
3.6km (2.3 miles) ⓘWheal Sparnon, Redruth, Cornwall, England, UK
4.0km (2.5 miles) ⓘWheal Buller, Wheal Buller and Beauchamp, Redruth, Cornwall, England, UK
6.2km (3.9 miles) ⓘWheal Tye, Wheal Lushington (West Wheal Towan), Porthtowan, St Agnes, Cornwall, England, UK
6.3km (3.9 miles) ⓘTrevascus Mine (Trevaskus Mine; Trevaskis Mine), Carnhell Green, Gwinear-Gwithian, Cornwall, England, UK
7.3km (4.5 miles) ⓘCarharrack Mine, Gwennap, Cornwall, England, UK
References
Hall, Townshend M. (1868) The Mineralogist's Directory: or, a guide to the Principal Mineral Localities in the United Kingdom of Great Britain and Ireland. Edward Stanford.
Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro.
 
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