Datolite and Biotite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.00
2.7-3.3
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Uneven, Even, Yellow, White
Cleavage
None
Perfect on the {001}
Mohs Hardness
5-5.5
2.5-3.0
Chemical Composition
CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Datolite and Biotite Chemical Formula
While comparing Datolite and Biotite 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 Datolite and Biotite chemical formula.
- Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Datolite and Biotite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Datolite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Datolite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Datolite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.