Andesine and Iolite Physical Properties

Andesine

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.692.6-2.7

1 7.18

1.5 Fracture

Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)

Not Available

1.6 Cleavage

Perfect on {001}, good on {010}

3,1

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

(Na,Ca)Al_1-2Si_3-2O₈

Mg₂Al₄Si₅O₁₈

Andesine and Iolite Chemical Formula

While comparing Andesine 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 Andesine and Iolite chemical formula.

Chemical formula of Andesine- (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Andesine and Iolite Specific Gravity

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