Milltown Quarry, Milltown, Ashover, Derbyshire, England, UK

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Milltown quarry is a small disused quarry, which was open for limestone extraction. In the 1990's the old quarry was use as a settlement pound for fluorspar slurry. It is crossed by a number of mineralised veins (or rakes), mostly fluorite/calcite. Some have in the past been worked for galena, and fluorite. The name dose not appear on OS maps until 1900, before this date it is just noted as old quarry (1880).
The mineralisation is thought to be related to Mississippi-Valley-type.

All of the unusual minerals were collected from a small area in the floor of the major Blackwells vein for a lenth of 1mt (which is now under 2mt of fluorspar slurry).

Located 1 km SE of Ashover.

Mineral List

Anglesite Ashoverite (TL) Baryte Calcite Cerussite Ettringite Fluorite

Galena Greenockite Gypsum Hemimorphite Hydrocerussite Hydrozincite Litharge

Massicot Palygorskite Pyrite Quartz Smithsonite Sphalerite Sulphur

Sweetite (TL) 'Unnamed (gamma-Zn(OH)2)' 'Unnamed (Tetragonal Pb Oxide Hydrate)' Weddellite Wülfingite

26 entries listed. 24 valid minerals. 2 type localities (valid minerals).

References