Aegirine and Esperite Physical Properties

Aegirine

Esperite

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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

4.28-4.42

1.5 Fracture

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

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

1.6 Cleavage

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

Distinct on [010] and [100] poor on [101]

1.7 Mohs Hardness

5-5.5

1.8 Chemical Composition

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

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Aegirine and Esperite Chemical Formula

While comparing Aegirine and Esperite 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 Esperite chemical formula.

Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Compare Gems for Pisces

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Aegirine Vs Mother of Pearl

Aegirine and Esperite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aegirine and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aegirine and Esperite Optical Properties during the identification of gemstone. Specific gravity of Aegirine is 4.28-4.42 whereas that of Esperite is 4.28-4.42.