Jadeite and Black Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.38
1.97-2.22
Fracture
Splintery, UnevenArthur Thomas, Difficult, Fibrous
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Good on [110]
Not Available
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
NaAlSi 2O 6Ulrich Henn and Claudio C.
SiO 2 + H 2OUlrich Henn and Claudio C.
Jadeite and Black Opal Chemical Formula
While comparing Jadeite and Black 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 Jadeite and Black Opal chemical formula.
- Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Jadeite and Black Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jadeite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jadeite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Jadeite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.