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mining botswana zimbabwelime stone

value of huge botswana diamond 'unknown' science the guardian

nov 19 lucara mining firm attracts many inquiries to buy -carat gem but says stone not yet valued as it's too big for onsite equipment and must be

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the mineral industry of botswana in - usgs mineral

mineral exploration and mining in botswana are regulated by the department of production of semiprecious stones was an estimated 35 kilograms

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inside the world's richest diamond mine - cnn - cnn com

dec 3 botswana is one of africa's richest countries due to its diamond road to gaborone airport handles stones from de beers' mines in namibia

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