Scheelite and Dravite Physical Properties
Specific Gravity
5.9-6.3
3.03-3.18
Fracture
Conchoidal, Uneven
Uneven, Irregular, Conchoidal
Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
{???} Indistinct
Mohs Hardness
4.5-5
7-7.5
Chemical Composition
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Scheelite and Dravite Chemical Formula
While comparing Scheelite 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 Scheelite and Dravite chemical formula.
- Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Scheelite and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Scheelite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.