Halite and Almandine Physical Properties

Halite

Almandine

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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

2.17

3.95-4.30

1.5 Fracture

Conchoidal, Brittle, Metallic

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Perfect {001}, three directions cubic

none

1.7 Mohs Hardness

2.0-2.5

7-7.5

1.8 Chemical Composition

NaCl

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Halite and Almandine Chemical Formula

While comparing Halite and Almandine 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 Almandine chemical formula.

Chemical formula of Halite- NaCl
Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Halite and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Halite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Halite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Halite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.