Jet and Iolite Physical Properties

Jet

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

1.19-1.352.6-2.7

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

Not Available

1.6 Cleavage

Not Available

3,1

1.7 Mohs Hardness

2.5-47-7.5

2 10

1.8 Chemical Composition

Not Available

Mg₂Al₄Si₅O₁₈

Jet and Iolite Chemical Formula

While comparing Jet 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 Jet and Iolite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Jet and Iolite Specific Gravity

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