Erythrite and Cryolite Physical Properties

Erythrite

Cryolite

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1 Physical Properties

1.1 Tenacity

Sectile

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.062.97

1 7.18

1.5 Fracture

Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

Uneven

1.6 Cleavage

Perfect on {010}; poor on {100} and { 1 02}.

None observed

1.7 Mohs Hardness

Not Available2.5

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

Na 3AlF 6Ulrich Henn and Claudio C.

Erythrite and Cryolite Chemical Formula

While comparing Erythrite 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 Erythrite and Cryolite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

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Erythrite and Cryolite Specific Gravity

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