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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Achroite from
Rocks Tin Mine, Rocks and Treverbyn United Tin Mines, Bugle, Treverbyn, Cornwall, England, UK


Locality type:Mine
Classification
Species:Tourmaline var: Achroite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Achroite data
Locality Data:Click here to view Rocks Tin Mine, Rocks and Treverbyn United Tin Mines, Bugle, Treverbyn, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:1501
Long-form Identifier:1:3:1501:1
GUID (UUID V4):0
Nearest other occurrences of Achroite
0.5km (0.3 miles) ⓘRock Hill China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK
0.6km (0.4 miles) ⓘGoonbarrow China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK
1.5km (0.9 miles) ⓘGunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
5.4km (3.4 miles) ⓘBlackpool China Clay Pit, Trewoon, St Mewan, Cornwall, England, UK
5.9km (3.7 miles) ⓘStenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, Cornwall, England, UK
69.2km (43.0 miles) ⓘStamps and Jowl Zawn (Roscommon Cliff), Cliff outcrops, Botallack, St Just, Cornwall, England, UK
References
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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