明矾

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铜明矾--蓝铜矿上边覆盖一层浅蓝。

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.

“地”到“刚地”,地开逐减少,高岭、明矾、英黄铁矿逐增多。