Amethyst and Cuprite Physical Properties
Tenacity
Not Available
Brittle
Solubility
insoluble in common solvents
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65
5.85-6.15
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Indiscernible
Fair in four directions forming octahedrons
Chemical Composition
SiO2
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Cuprite Chemical Formula
While comparing Amethyst and Cuprite 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 Amethyst and Cuprite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Cuprite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.