Onyx and Stichtite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.11-2.20
Fracture
Not Available
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Cleavage
Indiscernible
Perfect on {0001}
Mohs Hardness
6.5-7
Not Available
Chemical Composition
SiO2
Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Onyx and Stichtite Chemical Formula
While comparing Onyx and Stichtite 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 Onyx and Stichtite chemical formula.
- Chemical formula of Onyx- SiO2
- Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Onyx and Stichtite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Onyx and Stichtite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Stichtite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.11-2.20 whereas that of Stichtite is 2.11-2.20.