Onyx and Goshenite Physical Properties

Onyx

Goshenite

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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

2.55-2.702.60-2.90

1 7.18

1.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Indiscernible

3,1 basal

1.7 Mohs Hardness

6.5-77.5-8

2 10

1.8 Chemical Composition

SiO₂

Be₃Al₂SiO₆

Onyx and Goshenite Chemical Formula

While comparing Onyx and Goshenite 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 Goshenite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Goshenite- Be₃Al₂SiO₆

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Onyx and Goshenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Goshenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Goshenite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.60-2.90 whereas that of Goshenite is 2.60-2.90.