Aegirine and Black Opal Physical Properties

Aegirine

Black Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.50-3.60

1.97-2.22

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

6-6.5

1.8 Chemical Composition

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

SiO 2 + H 2OUlrich Henn and Claudio C.

Aegirine and Black Opal Chemical Formula

While comparing Aegirine and Black Opal 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 Black Opal chemical formula.

Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Gems for Pisces

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Aegirine and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aegirine and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aegirine and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Aegirine is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.