General Information:
Chemical Formula:
CaCO3
Composition:
(Molecular Weight = 100.09 gm)
Calcium 40.04 % Ca
Carbon 12.00 % C
Oxygen 47.96 % O
Empirical Formula:
Ca(CO3)
IMA Status:
Approved IMA 1963
Locality:
Aragon (Spain).
Name Origin:
Named after its locality.
Physical Properties:
Cleavage:
[010] Distinct
Color:
colorless, white, gray, yellowish white, or reddish white.
Density:
2.93
Diaphaniety:
Transparent to translucent
Habits:
Pseudo Hexagonal - Crystals show a hexagonal outline., Columnar - Forms columns, Fibrous - Crystals made up of fibers.
Hardness:
3.5-4 - Copper Penny-Flourite
Luminescence:
None.
Luster:
Vitreous (Glassy)
Streak:
white
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