Adamite and Biotite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.32-4.48
2.7-3.3
Fracture
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
Uneven, Even, Yellow, White
Cleavage
{101}, good; {010}, poor
Perfect on the {001}
Mohs Hardness
3.5
2.5-3.0
Chemical Composition
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Adamite and Biotite Chemical Formula
While comparing Adamite 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 Adamite and Biotite chemical formula.
- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Adamite and Biotite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Adamite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Adamite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.