Halite and Aragonite Physical Properties

Halite

Aragonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Water-soluble

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

2.17

2.93-2.96

1.5 Fracture

Conchoidal, Brittle, Metallic

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

1.6 Cleavage

Perfect {001}, three directions cubic

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

2.0-2.5

3.5-4

1.8 Chemical Composition

NaCl

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Halite and Aragonite Chemical Formula

While comparing Halite and Aragonite 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 Aragonite chemical formula.

Chemical formula of Halite- NaCl
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Halite Vs Torbanite

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Halite Vs Heliotrope

Halite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Halite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Halite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Halite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.