Topaz and Imperial Topaz Physical Properties

Topaz

Imperial Topaz

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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

3.49-3.573.49-3.57

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

[001] Perfect

Not Available

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Not Available

Topaz and Imperial Topaz Chemical Formula

While comparing Topaz and Imperial Topaz 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 Imperial Topaz chemical formula.

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

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Topaz and Imperial Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Imperial Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Imperial Topaz Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.49-3.57 whereas that of Imperial Topaz is 3.49-3.57.