General Information:
Chemical Formula:
CaMg(CO3)2
Composition:
(Molecular Weight = 184.40 gm)
Calcium 21.73 % Ca
Magnesium 13.18 % Mg
Carbon 13.03 % C
Oxygen 52.06 % O
Empirical Formula:
CaMg(CO3)2
Name Origin:
Named after the French mineralogist and geologist, D. de Dolomieu (1750-1801).
Physical Properties:
Cleavage:
[1011] Perfect, [1011] Perfect, [1011] Perfect
Color:
white, gray, reddish white, brownish white, or gray.
Density:
2.8 - 2.9, Average = 2.84
Diaphaniety:
Transparent to translucent
Habits:
Crystalline - Coarse - Occurs as well-formed coarse sized crystals., Massive - Uniformly indistinguishable crystals forming large masses., Blocky - Rhombohedral - Crystal shape resemb les rhomohedrons.
Hardness:
3.5-4 - Copper Penny-Flourite
Luminescence:
None.
Luster:
Vitreous (Glassy)
Streak:
white
More details...