Lucara Estimates 4.5 Million Carats from Karowe Underground Mine in Botswana Canadian miner Lucara Diamond Corporation has confirmed that the underground expansion of its Karowe diamond mine in Botswana could recover approximately 4.5 million carats over a projected mine life of ten years, according to an updated technical report. The company undertook the update to its underground feasibility study to reinforce its strategic decision to extend the life of the Karowe operation and continue delivering
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