Onyx and Wardite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.81
Fracture
Not Available
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Indiscernible
{001} Perfect
Mohs Hardness
6.5-7
4.5-5
Chemical Composition
SiO2
NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Onyx and Wardite Chemical Formula
While comparing Onyx and Wardite 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 Wardite chemical formula.
- Chemical formula of Onyx- SiO2
- Chemical formula of Wardite- NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Onyx and Wardite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Onyx and Wardite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Wardite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.81 whereas that of Wardite is 2.81.