Verdite and Iolite Physical Properties

Verdite

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

2.80-3.02.6-2.7

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

{110} Good

3,1

1.7 Mohs Hardness

37-7.5

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

Mg₂Al₄Si₅O₁₈

Verdite and Iolite Chemical Formula

While comparing Verdite 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 Verdite and Iolite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Verdite and Iolite Specific Gravity

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