CaMg(CO3)2Trigonal
Dolomite
CaMg(CO3)2
CarbonatesChemical FormulaCaMg(CO3)2
Crystal SystemTrigonal
Mohs Hardness3.5
Specific Gravity2.85
ColorWhite, gray, pink, colorless
LusterVitreous to pearly
StreakWhite
CleavageThree directions
FractureConchoidal
Occurrence
Found in sedimentary rocks. Dolostone rock is made of dolomite. Important building stone.