Stolzite and Iolite Physical Properties

Stolzite

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

22.6-2.7

1 7.18

1.5 Fracture

Conchoidal, Uneven, Brittle

Not Available

1.6 Cleavage

Imperfect on {001}, indistinct on {011}

3,1

1.7 Mohs Hardness

2.5-37-7.5

2 10

1.8 Chemical Composition

Not Available

Mg₂Al₄Si₅O₁₈

Stolzite and Iolite Chemical Formula

While comparing Stolzite 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 Stolzite and Iolite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Stolzite and Iolite Specific Gravity

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