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The Martison mine is a large mine located in Ontario. Martison represents one of the largest phosphates reserve in Canada having estimated reserves of 117.9 million tonnes of ore grading 22% P2O5. == 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「Martison mine」の詳細全文を読む スポンサード リンク
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