Biotite and Euclase Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.7-3.3
3.08-3.12
Fracture
Uneven, Even, Yellow, White
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
Cleavage
Perfect on the {001}
{010} Perfect
Mohs Hardness
2.5-3.0
7.5
Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Biotite and Euclase Chemical Formula
While comparing Biotite and Euclase 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 Euclase chemical formula.
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
- Chemical formula of Euclase- BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Biotite and Euclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Biotite and Euclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Euclase Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.08-3.12 whereas that of Euclase is 3.08-3.12.