The Mining Process – Waihi Gold
Ore processing is also on a roll at Mongolian operation. The miner, which kicked off its ore processing on March 25 from the Ulaanbaatar operation formally called Altan Tsagaan Ovoo, has started sales, with 5,233 ounces of gold and 1,372oz of silver delivered so far to the Central Bank of Mongolia. In spite of the effort and expense, nineteenth-century mills could be terribly inefficient. Much silver, in particular, was lost because, unlike gold, it bonded easily with other chemicals. The introduction of a cyanide process, developed between 1887 and 1897, proved more efficient with gold ore.