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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Great Rock Mine ： ウィキペディア英語版 Great Rock Mine Great Rock Mine is a disused micaceous haematite 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. (Great Rock: Devon's last metal mine ). Retrieved on 2007-06-15.〕 and was the last active mine in the Dartmoor National Park area.〔(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 haematite per year.〔(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.〔 ==References== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Great Rock Mine」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.