Sillimanite and Charoite Physical Properties
Tenacity
Tough
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.20-3.26
2.54-2.78
Fracture
Splintery
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{010} perfect
Good in three directions
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sillimanite and Charoite Chemical Formula
While comparing Sillimanite and Charoite 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 Charoite chemical formula.
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sillimanite and Charoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sillimanite and Charoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Charoite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.54-2.78 whereas that of Charoite is 2.54-2.78.