Iolite and Gyrolite Physical Properties

Iolite

Gyrolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.72.48

1 7.18

1.5 Fracture

Not Available

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

3,1

Perfect on {001}

1.7 Mohs Hardness

7-7.52

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

NaCa16Si23AlO60(OH)8•64(H2O)

Iolite and Gyrolite Chemical Formula

While comparing Iolite and Gyrolite 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 Gyrolite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Gyrolite- NaCa16Si23AlO60(OH)8•64(H2O)

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Iolite and Gyrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Gyrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Gyrolite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.48 whereas that of Gyrolite is 2.48.