Onyx and Narsarsukite Physical Properties

Onyx

Narsarsukite

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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

2.55-2.702.72-2.83

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Indiscernible

Good on {100} and {110}

1.7 Mohs Hardness

6.5-76-7

2 10

1.8 Chemical Composition

SiO₂

Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

Onyx and Narsarsukite Chemical Formula

While comparing Onyx and Narsarsukite 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 Narsarsukite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

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Onyx and Narsarsukite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Narsarsukite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Narsarsukite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.72-2.83 whereas that of Narsarsukite is 2.72-2.83.