Halite and Iolite Physical Properties

Halite

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Water-soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.172.6-2.7

1 7.18

1.5 Fracture

Conchoidal, Brittle, Metallic

Not Available

1.6 Cleavage

Perfect {001}, three directions cubic

3,1

1.7 Mohs Hardness

2.0-2.57-7.5

2 10

1.8 Chemical Composition

NaCl

Mg₂Al₄Si₅O₁₈

Halite and Iolite Chemical Formula

While comparing Halite 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 Halite and Iolite chemical formula.

Chemical formula of Halite- NaCl
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Halite and Iolite Specific Gravity

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