Topaz and Almandine Garnet Physical Properties

Topaz

Almandine 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

3.49-3.574.3

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

[001] Perfect

None.

1.7 Mohs Hardness

87.5-8.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Fe₃Al₂Si₃O₁₂

Topaz and Almandine Garnet Chemical Formula

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

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Almandine Garnet- Fe₃Al₂Si₃O₁₂

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Topaz and Almandine Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Almandine Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Almandine Garnet Optical Properties during the identification of gemstone. Specific gravity of Topaz is 4.3 whereas that of Almandine Garnet is 4.3.