Cuprite and Boulder Opal Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.85-6.15
1.98-2.25
Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Fair in four directions forming octahedrons
Not Available
Mohs Hardness
3.5-4
5-6.5
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 + H 2OUlrich Henn and Claudio C.
Cuprite and Boulder Opal Chemical Formula
While comparing Cuprite and Boulder Opal 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 Boulder Opal chemical formula.
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Cuprite and Boulder Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cuprite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cuprite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Cuprite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.