Halite and Anorthite Physical Properties

Halite

Anorthite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Water-soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.172.77

1 7.18

1.5 Fracture

Conchoidal, Brittle, Metallic

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Perfect {001}, three directions cubic

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

2.0-2.56-6.5

2 10

1.8 Chemical Composition

NaCl

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Halite and Anorthite Chemical Formula

While comparing Halite and Anorthite 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 Anorthite chemical formula.

Chemical formula of Halite- NaCl
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Halite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Halite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Halite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Halite is 2.77 whereas that of Anorthite is 2.77.