Narsarsukite and Onyx Physical Properties

Narsarsukite

Onyx

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.72-2.832.55-2.70

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Good on {100} and {110}

Indiscernible

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

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

SiO₂

Narsarsukite and Onyx Chemical Formula

While comparing Narsarsukite 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 Narsarsukite and Onyx chemical formula.

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

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Narsarsukite and Onyx Specific Gravity

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