many, but not all, copper ore deposits also contain gold
It is not a mineral; it is an alloy of 58,33 % gold with the rest copper, tin, silver.
gold, silver, and copper
Solid Minerals such as Gold and Copper are mostly mined using the Open Cast Method.
Gold, Silver and Copper belong to the native elements mineral group.
copper,gold, iron
Copper, Gold, and Silver (; Your welcome! (;
gypsum, uraninite, silver, copper, and gold
Gold is in the copper-silver-gold group of metals.
Arizona was the largest producer of Copper in the US in 2007.
Copper, gold, silver, to name only three.
Gold, Copper, Marble & Talc
Copper is an element. It is a natural mineral found in the ground. It is extracted from the ground by mining similar to the mining of gold or iron.