Biotite and Enstatite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.7-3.3
3.20-3.25
Fracture
Uneven, Even, Yellow, White
Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Perfect on the {001}
Good/distinct on [210]
Mohs Hardness
2.5-3.0
5.5
Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Biotite and Enstatite Chemical Formula
While comparing Biotite and Enstatite 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 Biotite and Enstatite chemical formula.
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
- Chemical formula of Enstatite- Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Biotite and Enstatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Biotite and Enstatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Enstatite Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.20-3.25 whereas that of Enstatite is 3.20-3.25.