Onyx and Ekanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.28-3.32
Fracture
Not Available
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
Indiscernible
{101} Distinct
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
SiO2
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
Onyx and Ekanite Chemical Formula
While comparing Onyx and Ekanite 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 Ekanite chemical formula.
- Chemical formula of Onyx- SiO2
- Chemical formula of Ekanite- ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
Onyx and Ekanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Onyx and Ekanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Ekanite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.28-3.32 whereas that of Ekanite is 3.28-3.32.