符合的藏品

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中文名:石墨

and greasy. Graphite seldom has the chemical combination with oxygen and acidity. Besides.....more

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. But if there is sulfur, silver easily response to the chemical reaction and forms gray or black Ag2S.....more

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are dimorphous, meaning that they are of the same chemical substances and different in structure and physical.....more

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, the chemical formula of pyrrhotite is Fe1-xS, in which x ranges from 0 to 0.2.Pyrrhotite is highly.....more

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depending on the angles of observation. Its chemical composition is silicate rich with iron.....more

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

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