Vesuvianite and Common Opal Physical Properties

Vesuvianite

Common Opal

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.32-3.43

Conchoidal

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

6-7

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

1.98-2.50

Conchoidal

None

5.5-6.5

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Vesuvianite and Common Opal Chemical Formula

While comparing Vesuvianite and Common Opal 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 Common Opal chemical formula.

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Vesuvianite and Common Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vesuvianite and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vesuvianite Vs Common Opal during the identification of gemstone. Specific gravity of Vesuvianite is whereas that of Common Opal is .