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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Smoky Quartz from
Colcerrow Quarry, Lanlivery, Cornwall, England, UK


Locality type:Quarry
Classification
Species:Quartz var: Smoky Quartz
Formula:SiO2
Comments:Kingsbury reference.
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Smoky Quartz data
Locality Data:Click here to view Colcerrow Quarry, Lanlivery, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:10252
Long-form Identifier:1:3:10252:0
GUID (UUID V4):0
Nearest other occurrences of Smoky Quartz
3.2km (2.0 miles) ⓘBodelva Pit (Carvear China Clay Works), Bodelva, St Blaise, Cornwall, England, UK
5.6km (3.5 miles) ⓘGoonbarrow China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK
5.9km (3.7 miles) ⓘGunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
11.7km (7.3 miles) ⓘLittle Treviscoe China Clay Pit (Treviscoe China Clay Works), Treviscoe, St Stephen-in-Brannel, Cornwall, England, UK
13.9km (8.6 miles) ⓘWheal Remfry China Clay Pit, Fraddon, St Enoder, Cornwall, England, UK
13.9km (8.7 miles) ⓘSouth Terras Mine (Resugga & Tolgarrick Mine; Union Mine; Uranium Mine), St Stephen-in-Brannel, Cornwall, England, UK
28.1km (17.4 miles) ⓘWheal Bray, Altarnun, Cornwall, England, UK
35.8km (22.2 miles) ⓘWheal Unity, Gwennap, Cornwall, England, UK
36.3km (22.6 miles) ⓘWheal Gorland, St Day, Cornwall, England, UK
37.1km (23.1 miles) ⓘLower Kergilliack Quarry, Budock, Cornwall, England, UK
References
Kingsbury, Arthur W. G. (1958) Two beryllium minerals new to Britain: euclase and herderite. Mineralogical Magazine and Journal of the Mineralogical Society, 31 (240). 815-817 doi:10.1180/minmag.1958.031.240.10
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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