Gahnite and Halite Physical Properties

Gahnite

Halite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Water-soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.00-4.622.17

1 7.18

1.5 Fracture

Conchoidal, Uneven

Conchoidal, Brittle, Metallic

1.6 Cleavage

Indistinct parting on [111]

Perfect {001}, three directions cubic

1.7 Mohs Hardness

7.5-82.0-2.5

2 10

1.8 Chemical Composition

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

NaCl

Gahnite and Halite Chemical Formula

While comparing Gahnite and Halite 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 Gahnite and Halite chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Halite- NaCl

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Gahnite and Halite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Halite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Halite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.17 whereas that of Halite is 2.17.