Vesuvianite and Zoisite Physical Properties

Vesuvianite

Zoisite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.32-3.433.20-3.50

1 7.18

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Fracture

Conchoidal

Uneven, Conchoidal, Even

Cleavage

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

Perfect {010} imperfect {100}

Mohs Hardness

6-76-7

2 10

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Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Vesuvianite and Zoisite Chemical Formula

While comparing Vesuvianite and Zoisite 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 Zoisite chemical formula.

Chemical formula of Vesuvianite- Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)

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Vesuvianite and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vesuvianite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vesuvianite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Vesuvianite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.