Variscite and Ajoite Physical Properties

Variscite

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

2.42-2.582.96

1 7.18

1.5 Fracture

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

Not Available

1.6 Cleavage

[010] perfect

Perfect on {010}

1.7 Mohs Hardness

4-55

2 10

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Variscite and Ajoite Chemical Formula

While comparing Variscite 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 Variscite and Ajoite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Variscite and Ajoite Specific Gravity

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