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


05077990017362148865753.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
00282480017271998432609.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
01918980017271998443024.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
02989250017271998454813.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
05077990017362148865753.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
03013010017362148874054.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
08711550017362148878129.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
06251170017362148887242.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
01213110017362148892405.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
06878400017271998462333.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
01918980017271998443024.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
02989250017271998454813.jpg
Fluorite

Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
Locality type:Quarry
Classification
Species:Fluorite
Formula:CaF2
Comments:Colourless crystals to 10cm have been found, but most are micro <2cm. Crystals useually have included pyrite micro crystals.
Habit:Cubes
Colour:Colourless, white, yellow, purple
Luminescent properties:non
Abundance at site:Very common
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Anglesite
Ashoverite
Baryte
Calcite
Cerussite
Ettringite
Galena
Greenockite
Hemimorphite
Hydrozincite
Litharge
Massicot
Native Sulphur
Palygorskite
Pyrite
Quartz
Smithsonite
Sphalerite
Sweetite
Unnamed (gamma-Zn(OH)2)
Unnamed (Tetragonal Pb Oxide Hydrate)
Weddellite
Wülfingite
Associated Minerals Based on Photo Data:
Smithsonite19
Calcite10
Quartz10
Ashoverite6
Cerussite5
Sweetite5
Baryte5
Galena5
Hydrocerussite4
Ettringite4
Litharge3
Unnamed (Tetragonal Pb Oxide Hydrate)2
Pyrite2
Unnamed (gamma-Zn(OH)2)2
Sidpietersite2
Weddellite1
Sphalerite1
Marcasite1
Chrysocolla1
Petroleum1
- var Bitumen1
Data
Mineral Data:Click here to view Fluorite data
Locality Data:Click here to view Milltown Quarry, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
Photo GalleryView Gallery (31 photos)
Data Identifiers
Mindat Occurrence Record ID:5310
Long-form Identifier:1:3:5310:5
GUID (UUID V4):0
Nearest other occurrences of Fluorite
0.2km (0.1 miles) ⓘStars Wood, Milltown, Ashover, North East Derbyshire District, Derbyshire, England, UK
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
1.5km (1.0 miles) ⓘButts Quarry, Ashover, North East Derbyshire District, Derbyshire, England, UK
5.8km (3.6 miles) ⓘMatlock, Derbyshire Dales District, Derbyshire, England, UK
6.3km (3.9 miles) ⓘHigh Tor, Matlock, Derbyshire Dales District, Derbyshire, England, UK
6.4km (4.0 miles) ⓘDimple Mine, Matlock, Derbyshire Dales District, Derbyshire, England, UK
6.5km (4.1 miles) ⓘGlory Mine, Crich, Amber Valley, Derbyshire, England, UK
6.6km (4.1 miles) ⓘLong Tor mine, Matlock, Derbyshire Dales District, Derbyshire, England, UK
References
58 (in German).
Mineralogical Magazine(1984) 48, 267-269
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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