Zoisite and Ajoite Physical Properties

Zoisite

Ajoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.502.96

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Perfect {010} imperfect {100}

Perfect on {010}

1.7 Mohs Hardness

6-75

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Zoisite and Ajoite Chemical Formula

While comparing Zoisite and Ajoite 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 Ajoite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Zoisite and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 2.96 whereas that of Ajoite is 2.96.