Almandine Garnet and Andradite Physical Properties

Almandine Garnet

Andradite

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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

4.33.70-4.10

1 7.18

1.5 Fracture

Not Available

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None.

none

1.7 Mohs Hardness

7.5-8.56.5-7

2 10

1.8 Chemical Composition

Fe₃Al₂Si₃O₁₂

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Almandine Garnet and Andradite Chemical Formula

While comparing Almandine Garnet and Andradite 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 Almandine Garnet and Andradite chemical formula.

Chemical formula of Almandine Garnet- Fe₃Al₂Si₃O₁₂
Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Almandine Garnet and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine Garnet and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine Garnet and Andradite Optical Properties during the identification of gemstone. Specific gravity of Almandine Garnet is 3.70-4.10 whereas that of Andradite is 3.70-4.10.