搜尋：tarnish

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符合的藏品

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中文名:硫砷銅礦

luster, Enargite is notable for its grayish black color and streak. However, a tarnish will dull.....more

1/2

中文名:自然金

and electricity. At the same time, it is resistant to chemical reaction and tarnish. The luster.....more

2/2