Iolite and Villiaumite Physical Properties

Iolite

Villiaumite

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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

2.6-2.72.79

1 7.18

1.5 Fracture

Not Available

Brittle, Metallic

1.6 Cleavage

3,1

{100} Perfect, {010} Perfect, {001} Perfect

1.7 Mohs Hardness

7-7.52

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

NaFUlrich Henn and Claudio C.

Iolite and Villiaumite Chemical Formula

While comparing Iolite and Villiaumite 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 Iolite and Villiaumite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.

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Iolite and Villiaumite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Villiaumite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Villiaumite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.79 whereas that of Villiaumite is 2.79.