Carnallite and Cryolite Physical Properties

Carnallite

Cryolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

1.62.97

1 7.18

1.5 Fracture

Violet, Conchoidal, Brittle, Conchoidal, Brittle

Uneven

1.6 Cleavage

None

None observed

1.7 Mohs Hardness

2.52.5

2 10

1.13 Chemical Composition

KMgCl3•6(H2O)

Na 3AlF 6Ulrich Henn and Claudio C.

Carnallite and Cryolite Chemical Formula

While comparing Carnallite and Cryolite 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 Carnallite and Cryolite chemical formula.

Chemical formula of Carnallite- KMgCl3•6(H2O)
Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

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Carnallite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnallite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnallite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Carnallite is 2.97 whereas that of Cryolite is 2.97.