Another larger piece was this impressive Chalcoalumite from Bisbee - the light blue coating on Azurite.
另一较大的标本是这个给人深刻印象的明矾--边覆盖一层浅色。
Another larger piece was this impressive Chalcoalumite from Bisbee - the light blue coating on Azurite.
另一较大的标本是这个给人深刻印象的明矾--边覆盖一层浅色。
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