Dolomite: Mineral information, data and localities.
A banded, green sinter dolomite, owing its colour to minor contents of nickel (% NiO) and iron (% FeO). The material is used for carving. Teruelite: Dark or black iron rich (10% of the magnesium site) dolomite found as euhedral crystals embedded in gypsumrich marls, originally described from Teruel, Arag#243;n, Spain. Zincbearing