Albite and Sillimanite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.60-2.65
3.20-3.26
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
Splintery
Cleavage
Perfect on {001}, very good on {010}, imperfect on {110}
{010} perfect
Mohs Hardness
6-6.5
6-7.5
Chemical Composition
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Albite and Sillimanite Chemical Formula
While comparing Albite 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 Albite and Sillimanite chemical formula.
- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Albite and Sillimanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Albite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Albite and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Albite is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.