Carnallite and Iolite Physical Properties

Carnallite

Iolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.62.6-2.7

1 7.18

1.5 Fracture

Violet, Conchoidal, Brittle, Conchoidal, Brittle

Not Available

1.6 Cleavage

None

3,1

1.7 Mohs Hardness

2.57-7.5

2 10

1.8 Chemical Composition

KMgCl3•6(H2O)

Mg₂Al₄Si₅O₁₈

Carnallite and Iolite Chemical Formula

While comparing Carnallite 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 Carnallite and Iolite chemical formula.

Chemical formula of Carnallite- KMgCl3•6(H2O)
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Carnallite and Iolite Specific Gravity

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