Erythrite and Aegirine Physical Properties

Erythrite

Aegirine

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1 Physical Properties

1.1 Tenacity

Sectile

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.06

3.50-3.60

1.5 Fracture

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

Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

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

Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}

1.7 Mohs Hardness

Not Available

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

Erythrite and Aegirine Chemical Formula

While comparing Erythrite and Aegirine 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 Aegirine chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

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Erythrite and Aegirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Aegirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Aegirine Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.50-3.60 whereas that of Aegirine is 3.50-3.60.