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