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