SX5758 : Hemerdon Mine

taken 6 years ago, near to Drakeland Corner, Devon, Great Britain

This is 1 of 12 images, with title Hemerdon Mine in this square
Hemerdon Mine
Hemerdon Mine
Wolframite in quartz sited in a micaceous granite. The opencast pit will eventually provide local employment until at the very earliest 2021. The pit, run by Wolf Minerals Ltd, will extract wolframite (Fe,Mn) WO4 and possibly minor cassiterite (Sn02).

The geology is in a granite dyke-like intrusion (280ma +/-2ma) surrounded by hornfels. Inside are greisen tourmaline/quartz/wolframite sheeted veins running parallel to the intrusion along with minor barren veins. The stockwork goes down to a depth of 400m. The concentrate will be taken out by one lorry every two days for shipment to Austria. Tungsten is used for tools in tungsten carbide alloys. The Hemerdon mine is a world-class deposit producing some of the highest concentrate tonnages in the world.
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SX5758, 34 images   (more nearby )
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Date Taken
Friday, 11 May, 2012   (more nearby)
Tuesday, 15 May, 2012
Geographical Context
Geological interest  Industry 
Subject Location
OSGB36: geotagged! SX 5732 5847 [10m precision]
WGS84: 50:24.5238N 4:0.5592W
Camera Location
OSGB36: geotagged! SX 5735 5847
View Direction
West-northwest (about 292 degrees)
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