Cryolite and Dravite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.97
3.03-3.18
Fracture
Uneven
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
None observed
{???} Indistinct
Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Cryolite and Dravite Chemical Formula
While comparing Cryolite and Dravite 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 Cryolite and Dravite chemical formula.
- Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Cryolite and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cryolite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.