Biotite and Celestine Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.7-3.3
3.90-4.00
Fracture
Uneven, Even, Yellow, White
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect on the {001}
Perfect on {001}, good on {210}, poor on {010}
Mohs Hardness
2.5-3.0
3-3.5
Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Biotite and Celestine Chemical Formula
While comparing Biotite and Celestine 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 Celestine chemical formula.
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
- Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Biotite and Celestine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Biotite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.