Onyx and Elbaite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.90-3.10
Fracture
Not Available
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Indiscernible
Poor/indistinct on {1120} and {1011}
Chemical Composition
SiO2
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Onyx and Elbaite Chemical Formula
While comparing Onyx and Elbaite 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 Elbaite chemical formula.
- Chemical formula of Onyx- SiO2
- Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Onyx and Elbaite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Onyx and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.