Sample #
22
Mineral Name
DOLOMITE
Chemical Composition
CaMg(CO3)2
Luster
Vitreous to pearly, dull
Color(s)
Usually white or yellow-brown, buff, grey, pinkish
Streak Color
White
Specifc Gravity
2.8-2.9
Habit
Massive, curved rhombohedra
Cleavage/Fracture
Perfect rhombohedral/Subconchoidal
Hardness
3.5-4
Diagnostic Feature(s) React with dilute acid only if powdered or acid is warm, pink-brown color, cleavage, habit