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
Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK


Locality type:Quarry
Classification
Species:Pyrite
Formula:FeS2
Comments:Pyrite forms common inclusions in fluorite
Habit:Flatend cubes
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Fluorite2
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
Data Identifiers
Mindat Occurrence Record ID:14392
Long-form Identifier:1:3:14392:5
GUID (UUID V4):0
Nearest other occurrences of Pyrite
0.2km (0.1 miles) ⓘNew Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
0.3km (0.2 miles) ⓘFall Hill Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
1.0km (0.6 miles) ⓘGregory Mine, Overton Hall, Ashover, North East Derbyshire District, Derbyshire, England, UK
3.4km (2.1 miles) ⓘTansley borehole, Tansley, Derbyshire Dales District, Derbyshire, England, UK
6.3km (3.9 miles) ⓘRiber mine, Matlock, Derbyshire Dales District, Derbyshire, England, UK
6.4km (4.0 miles) ⓘDimple Mine, Matlock, Derbyshire Dales District, Derbyshire, England, UK
6.6km (4.1 miles) ⓘCrich Quarry (Crich Cliff Quarry; Cliff Quarry), Crich, Amber Valley, Derbyshire, England, UK
7.4km (4.6 miles) ⓘMasson Hill and mines, Matlock, Derbyshire Dales District, Derbyshire, England, UK
7.7km (4.8 miles) ⓘJug Holes, Matlock, Derbyshire Dales District, Derbyshire, England, UK
8.1km (5.0 miles) ⓘBall Eye Quarry, Bonsall, Derbyshire Dales District, Derbyshire, England, UK
References
Rust, Steve A. (1994) Seltene Mineralien aus dem Milltown-Steinbruch bei Ashover, Derbyshire, Großbritannien [Rare minerals from the Milltown Quarry near Ashover, Derbyshire, UK]. Lapis, 19 (12). 13-17; 58
 
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