Rubellite and Cryolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.01-3.06
2.97
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven
Cleavage
Not Available
None observed
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Na 3AlF 6Ulrich Henn and Claudio C.
Rubellite and Cryolite Chemical Formula
While comparing Rubellite and Cryolite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Rubellite and Cryolite chemical formula.
- Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
- Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Rubellite and Cryolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rubellite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 2.97 whereas that of Cryolite is 2.97.