Uvite and Biotite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.97-3.14
2.7-3.3
Fracture
Uneven, Conchoidal, Brittle
Uneven, Even, Yellow, White
Cleavage
{1011} Indistinct
Perfect on the {001}
Mohs Hardness
Not Available
2.5-3.0
Chemical Composition
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Uvite and Biotite Chemical Formula
While comparing Uvite 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 Uvite and Biotite chemical formula.
- Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Uvite and Biotite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Uvite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Uvite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Uvite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.