Biotite and Azurmalachite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.7-3.3
3.70-3.95
Fracture
Uneven, Even, Yellow, White
ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)
Cleavage
Perfect on the {001}
1,1 basal.
Mohs Hardness
2.5-3.0
3.5-4
Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
(Cu) 3(OH) 2(CO 3) 2 + Cu 2(CO 3)(OH) 2Gemdat.org , Management Team (2012)
Biotite and Azurmalachite Chemical Formula
While comparing Biotite and Azurmalachite 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 Azurmalachite chemical formula.
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
- Chemical formula of Azurmalachite- (Cu) 3(OH) 2(CO 3) 2 + Cu 2(CO 3)(OH) 2Gemdat.org , Management Team (2012)
Biotite and Azurmalachite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Biotite and Azurmalachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Azurmalachite Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.70-3.95 whereas that of Azurmalachite is 3.70-3.95.