The refinery gets its gold from two sources. Primary: gold from mines that is 90% pure. Secondary: broken jewellery from that is 37% pure. The gold is washed in chemicals to reach a concentration ...

Mike Maharrey interviewed Helen Viljoen, founder and CEO of Nebu Gold, a South African company that has pioneered the concept of “investment jewelry.” ...

1 So while making money on selling your jewelry or coin ... If the recycler needs to, they may put less pure forms of gold through a process to separate the pure gold away from other metals.