Iolite and Diopside Physical Properties

Iolite

Diopside

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.7

3.22-3.40

1.5 Fracture

Not Available

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

1.6 Cleavage

3,1

Distinct/good on {110}

1.7 Mohs Hardness

7-7.5

5-6

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

CaMgSi₂O₆

Iolite and Diopside Chemical Formula

While comparing Iolite and Diopside 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 Diopside chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Diopside- CaMgSi₂O₆

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Iolite and Diopside Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Diopside Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.22-3.40 whereas that of Diopside is 3.22-3.40.