Zoisite and Ammolite Physical Properties

Zoisite

Ammolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.50

2.75-2.80

1.5 Fracture

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

Uneven, Granular

1.6 Cleavage

Perfect {010} imperfect {100}

no true cleavage

1.7 Mohs Hardness

6-7

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Not Available

Zoisite and Ammolite Chemical Formula

While comparing Zoisite and Ammolite 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 Ammolite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)

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Zoisite and Ammolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Ammolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Ammolite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 2.75-2.80 whereas that of Ammolite is 2.75-2.80.