Onyx and Andradite Garnet Physical Properties

Onyx

Andradite Garnet

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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

2.55-2.703.8-3.9

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

Indiscernible

None

1.7 Mohs Hardness

6.5-76.5-7.5

2 10

1.8 Chemical Composition

SiO₂

Ca₃Fe³⁺₂Si₃O₁₂

Onyx and Andradite Garnet Chemical Formula

While comparing Onyx and Andradite Garnet 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 Andradite Garnet chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Onyx and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.