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The Ghurayyah mine is a large mine located in the western part of Saudi Arabia in Tabuk Province. Ghurayyah represents one of the largest tantalum reserves in Saudi Arabia having estimated reserves of 385 million tonnes of ore grading 0.025% tantalum. == 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「Ghurayyah mine」の詳細全文を読む スポンサード リンク
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