General Information: Chemical Formula:CaCO3
Composition:(Molecular Weight = 100.09 gm)
Calcium 40.04 %
CaCarbon 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
More details...