Sillimanite and Scheelite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.20-3.26
5.9-6.3
Fracture
Splintery
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven
Cleavage
{010} perfect
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
6-7.5
4.5-5
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sillimanite and Scheelite Chemical Formula
While comparing Sillimanite and Scheelite 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 Sillimanite and Scheelite chemical formula.
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sillimanite and Scheelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sillimanite and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.