明矾

Another larger piece was this impressive Chalcoalumite from Bisbee - the light blue coating on Azurite.

另一较大标本是这个给人深刻铜明矾--蓝铜矿上边覆盖一层浅蓝色。

The research results show that the main minerals in "Di" of Changhua Chicken Blood Stone are dickite and kaolinite, and minor minerals are alunite, halloysite, quartz and pyrite, et al.

从“冻地”到“刚地”,地开石逐减少,高岭石、明矾石、石英和黄铁矿逐增多。