Sillimanite and Dolomite Physical Properties
Solubility
Not Available
Poorly soluble in dilute HCl
Durability
Not Available
Not Available
Specific Gravity
3.20-3.26
2.80-2.95
Fracture
Splintery
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{010} perfect
Perfect on {10 1 1}, rhombohedral cleavage
Mohs Hardness
6-7.5
3.5-4
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sillimanite and Dolomite Chemical Formula
While comparing Sillimanite and Dolomite 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 Dolomite chemical formula.
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sillimanite and Dolomite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sillimanite and Dolomite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Dolomite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.80-2.95 whereas that of Dolomite is 2.80-2.95.