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


08854970017272008065756.jpg
Topaz, etc.

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
08854970017272008065756.jpg
Topaz, etc.

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
08854970017272008065756.jpg
Topaz, etc.

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
Locality type:Pit
Classification
Species:Topaz
Formula:Al2(SiO4)(F,OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Torbernite1
Data
Mineral Data:Click here to view Topaz data
Locality Data:Click here to view Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:11094
Long-form Identifier:1:3:11094:5
GUID (UUID V4):0
Nearest other occurrences of Topaz
1.0km (0.6 miles) ⓘHigher Ninestones China Clay Pit, Carbean, Treverbyn, Cornwall, England, UK
1.1km (0.7 miles) ⓘGoonbarrow China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK
1.7km (1.1 miles) ⓘOld Beam Mine (Great Beam Mine), Bugle, Treverbyn, Cornwall, England, UK
1.9km (1.2 miles) ⓘNorth Goonbarrow China Clay Pit, Roche, Cornwall, England, UK
6.4km (4.0 miles) ⓘBelowda Beacon, Belowda, Roche, Cornwall, England, UK
6.6km (4.1 miles) ⓘBelowda China Clay Pit, Belowda, Roche, Cornwall, England, UK
7.8km (4.8 miles) ⓘCastle-an-Dinas Mine, Castle-an-Dinas, St Columb Major, Cornwall, England, UK
8.0km (5.0 miles) ⓘWheal Remfry China Clay Pit, Fraddon, St Enoder, Cornwall, England, UK
8.2km (5.1 miles) ⓘMelbur China Clay Pit, Melbur, St Stephen-in-Brannel, Cornwall, England, UK
8.8km (5.5 miles) ⓘDyer's Quarry, Chytane, St Enoder, 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
Econ Geol (1995) 90:495-519
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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