Onyx and Beryl Physical Properties

Onyx

Beryl

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

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

Uneven, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Uneven, Gems, Brittle

1.6 Cleavage

Indiscernible

Imperfect on {0001}

1.7 Mohs Hardness

6.5-77.5-8

2 10

1.8 Chemical Composition

SiO₂

Be₃Al₂Si₆O₁₈

Onyx and Beryl Chemical Formula

While comparing Onyx and Beryl 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 Beryl chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Beryl- Be₃Al₂Si₆O₁₈

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Onyx and Beryl Specific Gravity

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