Onyx and Ajoite Physical Properties

Onyx

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

2.55-2.702.96

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

Indiscernible

Perfect on {010}

1.7 Mohs Hardness

6.5-75

2 10

1.8 Chemical Composition

SiO₂

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Onyx and Ajoite Chemical Formula

While comparing Onyx 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 Onyx and Ajoite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Onyx and Ajoite Specific Gravity

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