[矿物欣赏-肆]自然铜

飞天拉面 2010-03-08 23:47

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侧卫007 2010-03-09 19:03

百度化学吧铜元素报到

易明诚 2010-05-11 21:03

和我想象的有些不一样。我以为会有带紫红色的。

hby213 2010-05-29 19:44

为什么不黑呢