Hibschite and Onyx Physical Properties

Hibschite

Onyx

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.05-3.082.55-2.70

1 7.18

1.5 Fracture

Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle

Not Available

1.6 Cleavage

None

Indiscernible

1.7 Mohs Hardness

6.56.5-7

2 10

1.8 Chemical Composition

Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

SiO₂

Hibschite and Onyx Chemical Formula

While comparing Hibschite and Onyx 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 Hibschite and Onyx chemical formula.

Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Onyx- SiO₂

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Hibschite and Onyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hibschite and Onyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibschite and Onyx Optical Properties during the identification of gemstone. Specific gravity of Hibschite is 2.55-2.70 whereas that of Onyx is 2.55-2.70.