Sillimanite and Magnesite Physical Properties
Solubility
Not Available
Effervesces in hot HCl
Durability
Not Available
Not Available
Specific Gravity
3.20-3.26
2.92-3.12
Fracture
Splintery
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
{010} perfect
[10 1 1] perfect
Mohs Hardness
6-7.5
3.5-4.5
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sillimanite and Magnesite Chemical Formula
While comparing Sillimanite and Magnesite 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 Magnesite chemical formula.
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sillimanite and Magnesite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sillimanite and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.