Cuprite and Star Ruby Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.85-6.15
3.95-4.10
Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Fair in four directions forming octahedrons
Not Available
Mohs Hardness
3.5-4
Not Available
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Cuprite and Star Ruby Chemical Formula
While comparing Cuprite and Star Ruby 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 Star Ruby chemical formula.
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Cuprite and Star Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cuprite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cuprite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Cuprite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.