A calcium iron magnesium manganese carbonate, part of the dolomite group, often brownish. It's a grounding stone that encourages practical solutions and promotes emotional stability and security.
White, Grey, Yellowish-Brown, Brown, Pinkish
Ankerite is classified as a carbonate mineral mineral which typically crystallizes in the trigonal system. Its chemical formula is Ca(Fe,Mg,Mn)(CO3)2. Common crystal habits include chrystals rhombohedral with curved faces; columnar, stalactitic, granular, massive.