水可把无水的硫酸铜固体由白色变成蓝色。

H2O can turn anhydrous copper sulphate solid from white to blue.

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如果把它放在手上你几乎感觉不到它的重量，看上去淡蓝色的如幽灵般——象固体的烟。

If you hold it in your hand, you can only barely feel its weight, and it looks bluish and ghostly - like solid smoke.

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可形成多种同素异形体，其共同特点都是有光泽、呈蓝色、易破碎的固体。

Of its various allotropes, the most common is a lustrous, bluish, brittle, flaky solid.

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