Beryl is a beryllium-aluminum silicate, and its color comes from small amounts of chromium.

绿宝石其实是一种铍铝硅酸盐，而它的颜色则来自于微量的铬元素。

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Beryl is a beryllium-aluminum silicate, and its color comes from small amounts of chromium.

绿宝石其实是一种铍铝硅酸盐，而它的颜色则来自于微量的铬元素。

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