Variscite and Iolite Physical Properties

Variscite

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

2.42-2.582.6-2.7

1 7.18

1.5 Fracture

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

Not Available

1.6 Cleavage

[010] perfect

3,1

1.7 Mohs Hardness

4-57-7.5

2 10

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

Mg₂Al₄Si₅O₁₈

Variscite and Iolite Chemical Formula

While comparing Variscite 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 Variscite and Iolite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Variscite and Iolite Specific Gravity

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