Sapphire and Andradite Garnet Physical Properties

Sapphire

Andradite Garnet

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.033.8-3.9

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Not Available

1.6 Cleavage

None, but may exhibit parting

None

1.7 Mohs Hardness

96.5-7.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

Ca₃Fe³⁺₂Si₃O₁₂

Sapphire and Andradite Garnet Chemical Formula

While comparing Sapphire 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 Sapphire and Andradite Garnet chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Sapphire and Andradite Garnet Specific Gravity

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