Coloured precious stones miner Gemfields (LON: GEM) (JSE: GML) has paused the sale of emeralds from its Kagem mine ... this month. Zambia, the world’s second largest emerald producer after ...

the majority shareholder of Kagem Minerals Limited, the country's main emerald producer, praised the government for its prompt and impressive response to the 15-percent export duty. "The Zambian ...

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在那里，你将目睹一些正在开采中的祖母绿矿。 有些矿场规模非常小，由当地人运营，而有些矿场的规模非常大，比如 MIKU（米库）和 KAGEM（卡其穆）矿。 后者可能是世界上最大的有色宝石矿坑。 “KAGEM（卡其穆）矿的产量大概占全世界产量的 20%，”Pardieu（珀 ...