Onyx and Glass Physical Properties

Onyx

Glass

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.39-4.00

1 7.18

1.5 Fracture

Not Available

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

1.6 Cleavage

Indiscernible

Not Available

1.7 Mohs Hardness

6.5-74-6

2 10

1.8 Chemical Composition

SiO₂

Not Available

Onyx and Glass Chemical Formula

While comparing Onyx and Glass 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 Glass chemical formula.

Chemical formula of Onyx- SiO₂

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Onyx and Glass Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Glass Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Glass Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.39-4.00 whereas that of Glass is 2.39-4.00.