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such as iron, manganese, cobalt, nickel, copper and other rare elements. They are generally distributed.....more
of three elements: copper, iron, and sulfur and usually a small amount of silver, gold, manganese.....more
. Pure form is a transparent crystal; multicolor is presented when containing other trace elements.....more
ore of zinc but also a major source of scarce elements such as Cd, Ga, Ge, In and Tl.主要由鋅和硫所組成，但也常含有鐵.....more
