Iolite and Amazonite Physical Properties

Iolite

Amazonite

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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

2.6-2.72.55-2.57

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

3,1

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

1.7 Mohs Hardness

7-7.56-6.5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

KAlSi₃O₈

Iolite and Amazonite Chemical Formula

While comparing Iolite and Amazonite 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 Amazonite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Amazonite- KAlSi₃O₈

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Iolite and Amazonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Amazonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Amazonite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.55-2.57 whereas that of Amazonite is 2.55-2.57.