Zoisite and Aegirine Physical Properties

Zoisite

Aegirine

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.50

3.50-3.60

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even

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

1.6 Cleavage

Perfect {010} imperfect {100}

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

1.7 Mohs Hardness

6-7

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Zoisite and Aegirine Chemical Formula

While comparing Zoisite 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 Zoisite and Aegirine chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

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Zoisite and Aegirine Specific Gravity

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