Biotite and Serendibite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.7-3.3
3.43-3.44
Fracture
Uneven, Even, Yellow, White
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Perfect on the {001}
None Observed
Mohs Hardness
2.5-3.0
6.5-7
Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Biotite and Serendibite Chemical Formula
While comparing Biotite and Serendibite 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 Serendibite chemical formula.
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
- Chemical formula of Serendibite- Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Biotite and Serendibite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Biotite and Serendibite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Serendibite Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.43-3.44 whereas that of Serendibite is 3.43-3.44.