Aegirine and Alexandrite Physical Properties

Aegirine

Alexandrite

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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

3.50-3.603.69-3.81

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

1,1 ; 3,2.

1.7 Mohs Hardness

68.5

2 10

1.8 Chemical Composition

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

BeAl ₂ O ₄

Aegirine and Alexandrite Chemical Formula

While comparing Aegirine and Alexandrite 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 Alexandrite chemical formula.

Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
Chemical formula of Alexandrite- BeAl ₂ O ₄

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Aegirine and Alexandrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aegirine and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aegirine and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Aegirine is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.