Great Rock Mine

Great Rock Mine is a disused micaceous hematite mine about 3 km north of the town of Bovey Tracey in Devon, England. It was worked from the 19th century until 1969,Brooks, Tony. [http://genuki.cs.ncl.ac.uk/DEV/Hennock/GreatRock.html Great Rock: Devon's last metal mine] . Retrieved on 2007-06-15.] and was the last active mine in the Dartmoor National Park area. [ [http://www.dartmoor-npa.gov.uk/print/index/learningabout/lab-exhibitions/lab-dartmoorrock/dartmoor_rock-online.htm The Uses of Dartmoor Rock] . "Dartmoor National Park Authority". Retrieved on 2007-06-15.]

At its most active during the 1940s, the mine produced 2,500 tons of micaceous hematite per year. [ [http://www.mindat.org/loc-32191.html Great Rock Mine, Hennock, North-Eastern Dartmoor, Dartmoor & Teign Valley District, Devon, England, UK] . "Mineralogy Database". Retrieved on 2007-06-15.] The mineral was an important ingredient in the rust-resistant paint used on Royal Navy ships and on bridges, including the Royal Albert Bridge and the Sydney Harbour Bridge.

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