Phlogopite and Halite Physical Properties

Phlogopite

Halite

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1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

Water-soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.852.17

1 7.18

1.5 Fracture

None, Uneven

Conchoidal, Brittle, Metallic

1.6 Cleavage

Perfect basal (001)

Perfect {001}, three directions cubic

1.7 Mohs Hardness

2-2.52.0-2.5

2 10

1.8 Chemical Composition

Not Available

NaCl

Phlogopite and Halite Chemical Formula

While comparing Phlogopite 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 Phlogopite and Halite chemical formula.

Chemical formula of Halite- NaCl

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Phlogopite and Halite Specific Gravity

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