General Information:
Chemical Formula:
Na2Ca(CO3)2·5(H2O)
Composition:
(Molecular Weight = 296.15 gm)
Sodium 15.53 % Na
Calcium 13.53 % Ca
Hydrogen 3.40 % H
Carbon 8.11 % C
Oxygen 59.43 % O
Empirical Formula:
CaNa2(CO3)2·5(H2O)
Name Origin:
Named after the French chemist and physicist, J. L. Gay-Lussac (1778-1850).
Physical Properties:
Cleavage:
[110] Perfect, [001] Indistinct
Color:
colorless, gray, gray white, yellow, or yellowish white.
Density:
1.93 - 1.99, Average = 1.96
Diaphaniety:
Translucent
Habits:
Disseminated - Occurs in small, distinct particles dispersed in matrix., Tabular - Form dimensions are thin in one direction.,
Hardness:
2.5 - Finger Nail
Luminescence:
None.
Luster:
Vitreous (Glassy)
Streak:
white
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