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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Tourmaline from
Redmoor Mine (East Cornwall United Mines), Callington United Mines (incl. Emmens United Mines), Stokeclimsland, Cornwall, England, UK


08010160017364986069289.jpg
Tourmaline

Redmoor Mine, Callington United Mines, Stokeclimsland, Cornwall, England, UK
08010160017364986069289.jpg
Tourmaline

Redmoor Mine, Callington United Mines, Stokeclimsland, Cornwall, England, UK
01596280017272306027852.jpg
Tourmaline

Redmoor Mine, Callington United Mines, Stokeclimsland, Cornwall, England, UK
Locality type:Mine
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Redmoor Mine (East Cornwall United Mines), Callington United Mines (incl. Emmens United Mines), Stokeclimsland, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:197381
Long-form Identifier:1:3:197381:5
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
1.8km (1.1 miles) ⓘSouth Kit Hill Mine (Cornwall Great Consols), Kit Hill United Mines (incl. Kit Hill Great Consols), Callington, Stokeclimsland, Cornwall, England, UK
1.8km (1.1 miles) ⓘKit Hill Mine (Kit Hill Consols), Kit Hill United Mines (incl. Kit Hill Great Consols), Callington, Stokeclimsland, Cornwall, England, UK
2.8km (1.7 miles) ⓘWheal Tom, Stokeclimsland, Cornwall, England, UK
2.8km (1.8 miles) ⓘExcelsior Mine (incl. Excelsior Tunnel), Stokeclimsland, Cornwall, England, UK
3.2km (2.0 miles) ⓘEast Kit Hill Mine, Kit Hill United Mines (incl. Kit Hill Great Consols), Callington, Stokeclimsland, Cornwall, England, UK
4.0km (2.5 miles) ⓘNew Consols (New Great Consols; New Wheal Martha; Great Wheal Martha; Wheal Martha), Luckett, Callington, Stokeclimsland, Cornwall, England, UK
4.3km (2.7 miles) ⓘPrince of Wales Mine (Wheal Pleasant), Harrowbarrow & Prince of Wales Mines (Calstock United Tin and Copper Mines), Calstock, Cornwall, England, UK
5.9km (3.7 miles) ⓘStoke Climsland Consols (?), Stokeclimsland, Cornwall, England, UK
6.8km (4.2 miles) ⓘDrakewalls Mine, Drakewalls, Calstock, Cornwall, England, UK
7.9km (4.9 miles) ⓘSouth Bedford Mine (South Gunnislake Mine; in part: South Bedford and East Gunnislake Mine), Gulworthy, West Devon, Devon, England, UK
References
Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386
Dines, H. G. (1956) The Metalliferous Mining Region of South-West England (1st ed.) Vol. 2. Geological Survey of Great Britain.pp.627-628
 
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