Onyx and Clinozoisite Physical Properties

Onyx

Clinozoisite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.70

3.21-3.38

1.5 Fracture

Not Available

Irregular/uneven, Uneven

1.6 Cleavage

Indiscernible

Perfect on {001}

1.7 Mohs Hardness

6.5-7

6-7

1.8 Chemical Composition

SiO₂

Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Onyx and Clinozoisite Chemical Formula

While comparing Onyx and Clinozoisite 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 Clinozoisite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Clinozoisite- Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Onyx and Clinozoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Clinozoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Clinozoisite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.21-3.38 whereas that of Clinozoisite is 3.21-3.38.