Sinhalite and Iolite Physical Properties

Sinhalite

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

3.46-3.502.6-2.7

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Not Available

1.6 Cleavage

Not Available

3,1

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Mg₂Al₄Si₅O₁₈

Sinhalite and Iolite Chemical Formula

While comparing Sinhalite 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 Sinhalite and Iolite chemical formula.

Chemical formula of Sinhalite- MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Sinhalite and Iolite Specific Gravity

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