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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Zinnwaldite from
Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK


Locality type:Pit
Classification
Species:'Zinnwaldite' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Zinnwaldite data
Locality Data:Click here to view Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:12165
Long-form Identifier:1:3:12165:9
GUID (UUID V4):0
Nearest other occurrences of Zinnwaldite
0.5km (0.3 miles) ⓘHensbarrow China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
7.8km (4.8 miles) ⓘCastle-an-Dinas Mine, Castle-an-Dinas, St Columb Major, Cornwall, England, UK
48.5km (30.1 miles) ⓘGreat Work Mine (incl. Leeds Mine), Godolphin Cross, Breage, Cornwall, England, UK
References
Barstow, R. W. (1982) Variscite from Hensbarrow china clay works, St. Austell, Cornwall. Mineralogical Magazine, 46 (341) 512 doi:10.1180/minmag.1982.046.341.23
Williamson, B. J., Stanley, C. J., Wilkinson, J. J. (1997) Implications from inclusions in topaz for greisenisation and mineralisation in the Hensbarrow topaz granite, Cornwall, England. Contributions to Mineralogy and Petrology, 127 (1) 119-128 doi:10.1007/s004100050269
Tindle, Andy G. (2008) Minerals of Britain and Ireland. Terra Publishing.
 
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