General Information:
Chemical Formula:
Na2CO3·10(H2O)
Composition:
(Molecular Weight = 286.14 gm)
Sodium 16.07 % Na
Hydrogen 7.05 % H
Carbon 4.20 % C
Oxygen 72.69 % O
Empirical Formula:
Na2(CO3)·10(H2O)
Environment:
Saline lake beds in arid environments.
IMA Status:
Approved IMA 1960
Locality:
Ragtown, Nevada, USA.
Name Origin:
From the Latin for "soda."
Physical Properties:
Cleavage:
[001] Distinct, [010] Imperfect
Color:
white, gray, colorless, or yellow.
Density:
1.42 - 1.47, Average = 1.44
Diaphaniety:
Transparent to Translucent
Habits:
Encrustations - Forms crust-like aggregates on matrix., Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation.,
Hardness:
1 - Talc
Luminescence:
Phosphorescent.
Luster:
Vitreous (Glassy)
Streak:
white
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