General Information:
Chemical Formula:
Na2[Al2Si3O10]·3(H2O)
Composition:
(Molecular Weight = 398.24 gm)
Sodium 11.55 % Na
Aluminum 13.55 % Al
Silicon 21.16 % Si
Hydrogen 1.52 % H
Oxygen 52.23 % O
Empirical Formula:
Na2Al2Si3O10·3(H2O)
Environment:
Unstable mineral. Dehydrates to tetranatrolite.
IMA Status:
IMA Status in Question 1998
Locality:
Mont Saint-Hilaire, Quebec, Canada.
Name Origin:
The name recognizes its association with and similarity in chemical composition to natrolite.
Physical Properties:
Cleavage:
None
Color:
colorless, white, or pink.
Density:
2.21
Diaphaniety:
Transparent
Hardness:
5-5.5 - Apatite-Knife Blade
Luster:
Vitreous - Greasy
Streak:
white
More details...