Onyx and Marialite Physical Properties

Onyx

Marialite

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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

2.55-2.702.50

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Indiscernible

Distinct on {100} and {110}

1.7 Mohs Hardness

6.5-75.5-6

2 10

1.8 Chemical Composition

SiO₂

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Onyx and Marialite Chemical Formula

While comparing Onyx and Marialite 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 Marialite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

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Onyx and Marialite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Marialite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.50 whereas that of Marialite is 2.50.