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carbonatecyanotrichite
A carbonate-rich variety of Cyanotrichite, where the sulfate radical (SO 4) is partially replaced by a carbonate radical (CO 2). Its chemical formula is Cu 4Al 2(CO3,SO4)(OH) 12 ยท 2H2O. Carbonatecyanotrichite is technically not really a variety since it is scientifically recognized as as a distinct mineral species, though it is identical to Cyanotrichite and virtually indistinguishable.
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