Halite and Apophyllite Physical Properties

Halite

Apophyllite

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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

2.172.30-2.50

1 7.18

1.5 Fracture

Conchoidal, Brittle, Metallic

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect {001}, three directions cubic

Perfect on (001)

1.7 Mohs Hardness

2.0-2.54.5-5

2 10

1.8 Chemical Composition

NaCl

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Halite and Apophyllite Chemical Formula

While comparing Halite and Apophyllite 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 Apophyllite chemical formula.

Chemical formula of Halite- NaCl
Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Halite and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Halite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Halite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Halite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.