Iolite and Hiddenite Physical Properties

Iolite

Hiddenite

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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

2.6-2.7

3.15-3.21

1.5 Fracture

Not Available

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

3,1

1,2 prismatic

1.7 Mohs Hardness

7-7.5

6-7

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

LiAlSi₂O₆

Iolite and Hiddenite Chemical Formula

While comparing Iolite and Hiddenite 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 Hiddenite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Hiddenite- LiAlSi₂O₆

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Iolite and Hiddenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Hiddenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Hiddenite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.15-3.21 whereas that of Hiddenite is 3.15-3.21.