Topaz and Vesuvianite Physical Properties

Topaz

Vesuvianite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Vesuvianite is virtually insolouble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.573.32-3.43

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

[001] Perfect

Poor on {110} and {100} very poor on {001}

1.7 Mohs Hardness

86-7

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Not Available

Topaz and Vesuvianite Chemical Formula

While comparing Topaz and Vesuvianite 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 Vesuvianite chemical formula.

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

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Topaz and Vesuvianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Vesuvianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Vesuvianite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.32-3.43 whereas that of Vesuvianite is 3.32-3.43.