Dolomite
CaMg(CO3)2 Colour: Colourless and transparent or white, grey or greenish, becoming yellowish brown or brown with increasing iron content; also pink or rose.
Streak : White
Hardness: 3.5- 4
Crystals commonly rhobohedral. As a rock forming mineral, usually massive like ordinary limestone. Only slightly attacked by cold dilute acids but readily
dissolves in warm acids.
Dolomite occurs widely in sedimentary strata.
