Spherocobaltite or sphaerocobaltite is a cobalt carbonate mineral with chemical composition CoCO3. In its (rare) pure form, it is typically a rose-red color, but impure specimens can be shades of pink to pale brown. It crystallizes in the trigonal crystal system. ==Discovery and occurrence== Spherocobaltite was first described in 1877 for an occur...
Cobalt(II) carbonate