Mining Key Facts —The resource. A Canadian miner has outlined about eight million ounces of gold at its Omai project in Guyana. —The split. The estimate covers two adjacent deposits, one suited to an open pit and one to underground mining. —The history. Omai was once one of South America’s largest gold mines before it […] The post Guyana Is Famous for Oil. A Gold Mine Wants to Change That appeared first on The Rio Times.