Vesuvianite and Dumortierite Physical Properties

Vesuvianite

Dumortierite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.32-3.433.26-3.41

1 7.18

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Fracture

Conchoidal

Fibrous, ConchoidalWalter Schumann

Cleavage

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

Distinct on {100}, poor on {110}; parting on {001}

Mohs Hardness

6-77-8.5

2 10

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Chemical Composition

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

AlAl₆O₃BSi₃O₁₈

Vesuvianite and Dumortierite Chemical Formula

While comparing Vesuvianite and Dumortierite 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 Dumortierite chemical formula.

Chemical formula of Vesuvianite- Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Vesuvianite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vesuvianite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vesuvianite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Vesuvianite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.