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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Jasper from
Wheal Unity, Gwennap, Cornwall, England, UK


Locality type:Mine
Classification
Type:Jasper
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Jasper data
Locality Data:Click here to view Wheal Unity, Gwennap, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:548357
Long-form Identifier:1:3:548357:0
GUID (UUID V4):0
Nearest other occurrences of Jasper
5.4km (3.3 miles) ⓘSouth Wheal Basset, Carnkie, Carn Brea, Cornwall, England, UK
8.4km (5.2 miles) ⓘNorth Roskear Mine, North Roskear, Camborne, Cornwall, England, UK
13.7km (8.5 miles) ⓘNew Rosewarne Mine, Rosewarne United Mines, Gwinear-Gwithian, Cornwall, England, UK
23.3km (14.5 miles) ⓘWheal Trugo, Trebudannon, St Columb Major, Cornwall, England, UK
30.2km (18.8 miles) ⓘGunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
30.6km (19.0 miles) ⓘPenlee Beach, Newlyn, Penzance, Cornwall, England, UK
30.9km (19.2 miles) ⓘDing Dong Mine, Boskednan, Madron, Cornwall, England, UK
36.4km (22.6 miles) ⓘWheal Carne (Wheal Maitland; Wheal London), Geevor Mine, Pendeen, St Just, Cornwall, England, UK
37.0km (23.0 miles) ⓘWheal Stennack, Geevor Mine, Pendeen, St Just, Cornwall, England, UK
37.5km (23.3 miles) ⓘSpearn Consols (Wheal Spearn), Trewellard, St Just, Cornwall, England, UK
References
Hogg, Thomas (1825) A Manual of Mineralogy - In which is shown how much Cornwall contributes to the illustration of the science. W. Polybank High Cross, Truro.
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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