Vishnevite and Iolite Physical Properties

Vishnevite

Iolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.6-2.7

1 7.18

1.5 Fracture

Brittle, Uneven

Not Available

1.6 Cleavage

Perfect

3,1

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

Not Available

Mg₂Al₄Si₅O₁₈

Vishnevite and Iolite Chemical Formula

While comparing Vishnevite and Iolite 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 Vishnevite and Iolite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Vishnevite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vishnevite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.