Cuprite and Biotite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.85-6.15
2.7-3.3
Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Even, Yellow, White
Cleavage
Fair in four directions forming octahedrons
Perfect on the {001}
Mohs Hardness
3.5-4
2.5-3.0
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Cuprite and Biotite Chemical Formula
While comparing Cuprite 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 Cuprite and Biotite chemical formula.
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Cuprite and Biotite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cuprite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cuprite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Cuprite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.