Introduction To Gold Mining

A variety of gold containing silver, usually with 20 wt.% of silver. Iridian Gold: An iridium-rich variety of gold. Mercurian Gold: A variety of gold with a Mercury content of up to 15 weight percent. Nickel-bearing Gold: Natural gold-nickel alloys with Ni contents up to 40 mass%. The colour of such alloys can be silver-white. Palladian Gold