Vesuvianite and Topaz Physical Properties

Vesuvianite

Topaz

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.32-3.433.49-3.57

1 7.18

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Fracture

Conchoidal

Subconchoidal, Uneven, Conchoidal

Cleavage

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

[001] Perfect

Mohs Hardness

6-78

2 10

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Chemical Composition

Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4

Al₂SiO₄(F,OH)₂

Vesuvianite and Topaz Chemical Formula

While comparing Vesuvianite and 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 Vesuvianite and Topaz chemical formula.

Chemical formula of Vesuvianite- Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

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Vesuvianite and Topaz Specific Gravity

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