Biotite and Serpentine Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.7-3.3
2.44-2.62
Fracture
Uneven, Even, Yellow, White
Uneven, Uneven, Gemstones of the world (2001) More from other references
Cleavage
Perfect on the {001}
Not Available
Mohs Hardness
2.5-3.0
2.5-5.5
Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
Biotite and Serpentine Chemical Formula
While comparing Biotite and Serpentine 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 Serpentine chemical formula.
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
- Chemical formula of Serpentine- H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
Biotite and Serpentine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Biotite and Serpentine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Serpentine Optical Properties during the identification of gemstone. Specific gravity of Biotite is 2.44-2.62 whereas that of Serpentine is 2.44-2.62.