Tanzanite and Ajoite Physical Properties

Tanzanite

Ajoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.35

2.96

1.5 Fracture

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Not Available

1.6 Cleavage

Perfect {010}, imperfect {100}

Perfect on {010}

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Tanzanite and Ajoite Chemical Formula

While comparing Tanzanite 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 Tanzanite and Ajoite chemical formula.

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

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Tanzanite and Ajoite Specific Gravity

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