Verdelite and Onyx Physical Properties

Verdelite

Onyx

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.40

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

2.55-2.70

Indiscernible

6.5-7

SiO₂

Verdelite and Onyx Chemical Formula

While comparing Verdelite and Onyx 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 Verdelite and Onyx chemical formula.

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Verdelite and Onyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Verdelite and Onyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdelite Vs Onyx during the identification of gemstone. Specific gravity of Verdelite is whereas that of Onyx is .