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共找到 7 筆符合的資料
SilverThe color and steak of native silver is grayish white and it remains stable in the air and water.....more
the luster of the crystals and the black color may turn into silver white over time if exposed to sun.....more
and SulfosaltsConsisting of lead and sulfur, Galena may also contain small amounts of silver, copper or zinc. Its distinct.....more
of three elements: copper, iron, and sulfur and usually a small amount of silver, gold, manganese.....more
and sulfur, Galena may also contain small amounts of silver, copper or zinc. Its distinct features.....more
and selenium, and small amounts of gold and silver sometimes.It is of leaden color and low hardness.....more
、貨幣、裝飾品等方面。礦物自然元素自然銅Native CopperThe color and streak is copper red, tarnishing brown to black when.....more
