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共找到 5 筆符合的資料
in the Chin-Kua-Shih gold and copper deposits in Taipei and is therefore an economically valuable.....more
occasionally also contains a small portion of gold, silver, copper, iron and lead. Stibnite crystals.....more
of three elements: copper, iron, and sulfur and usually a small amount of silver, gold, manganese.....more
and selenium, and small amounts of gold and silver sometimes.It is of leaden color and low hardness.....more
and sulfur, and sometimes contains small amounts of nickel, cobalt, gold, silver and copper" 晶系:等軸 集合.....more
