Onyx and Muscovite Physical Properties

Onyx

Muscovite

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1 Physical Properties

1.1 Tenacity

Not Available

Elastic

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.78-2.88

1 7.18

1.5 Fracture

Not Available

Micaceous, Brittle

1.6 Cleavage

Indiscernible

Perfect on the {001}

1.7 Mohs Hardness

6.5-72-3

2 10

1.8 Chemical Composition

SiO₂

KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Onyx and Muscovite Chemical Formula

While comparing Onyx and Muscovite 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 Muscovite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Muscovite- KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Onyx and Muscovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Muscovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Muscovite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.78-2.88 whereas that of Muscovite is 2.78-2.88.