Aegirine and Sellaite Physical Properties

Aegirine

Sellaite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.50-3.603.14-3.16

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

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

Perfect on {010} and {110}

1.7 Mohs Hardness

65-5.5

2 10

1.8 Chemical Composition

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

MgF 2Ulrich Henn and Claudio C.

Aegirine and Sellaite Chemical Formula

While comparing Aegirine and Sellaite 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 Aegirine and Sellaite chemical formula.

Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.

Compare Gems for Pisces

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Aegirine and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aegirine and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aegirine and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Aegirine is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.