New Zealand Hard Ore Mining Machine For Mining Iron Ore And Extract

New Zealand Hard Ore Mining Machine For Mining Iron Ore And Extract

However, in 1889 a cyanide-solution process was trialled at the Crown Battery in Karangahake on crushed rock and proved so effective it led to a new and long-lasting boom in Coromandel mining. By 1911, Martha was New Zealands biggest gold mine and the nearby miners town of Waihi, population 6500, the largest town in the region.

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