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names and materials in mining gold and diamond

Oct 28, 2019· Following the decline in Indiandiamond mining,diamondswas discovered in Brazil in the 1720s, North America in the 1840s, and in Africa in the 1860s. The rise of Africandiamondmines sparked the GreatDiamondRush as well as the KimberlyMine, the first largescalediamond miningoperation. The largestdiamondmines

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