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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Pyrite from
Gregory Mine, Overton Hall, Ashover, North East Derbyshire District, Derbyshire, England, UK


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Gregory Mine, Overton Hall, Ashover, North East Derbyshire District, Derbyshire, England, UK
Data Identifiers
Mindat Occurrence Record ID:9010
Long-form Identifier:1:3:9010:0
GUID (UUID V4):0
Nearest other occurrences of Pyrite
0.8km (0.5 miles) ⓘNew Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
1.0km (0.6 miles) ⓘMilltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
1.3km (0.8 miles) ⓘFall Hill Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
2.5km (1.6 miles) ⓘTansley borehole, Tansley, Derbyshire Dales District, Derbyshire, England, UK
5.4km (3.3 miles) ⓘRiber mine, Matlock, Derbyshire Dales District, Derbyshire, England, UK
5.4km (3.4 miles) ⓘDimple Mine, Matlock, Derbyshire Dales District, Derbyshire, England, UK
6.1km (3.8 miles) ⓘCrich Quarry (Crich Cliff Quarry; Cliff Quarry), Crich, Amber Valley, Derbyshire, England, UK
6.4km (4.0 miles) ⓘMasson Hill and mines, Matlock, Derbyshire Dales District, Derbyshire, England, UK
6.7km (4.1 miles) ⓘJug Holes, Matlock, Derbyshire Dales District, Derbyshire, England, UK
7.1km (4.4 miles) ⓘBall Eye Quarry, Bonsall, Derbyshire Dales District, Derbyshire, England, UK
References
Farey, John (1811) General View of the Agricuture and Minerals of Derbyshire Vol. 1. G. & W. Nicol. p.259
Ford, T., Sarjeant, A., Smith, M. (1993) The minerals of the Peak district of Derbyshire. UK Journal of Mines and Minerals 13, Rockbottom Publications. 16-55
Cooper, M. (1995) Crystallized Enargite from the Gregory Mine, Ashover, Derbyshire . UK Journal of Mines and Minerals 15, 28-29
 
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