Crystal Opal and Narsarsukite Physical Properties

Crystal Opal

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

1.97-2.222.72-2.83

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

Good on {100} and {110}

1.7 Mohs Hardness

5.5-6.56-7

2 10

1.8 Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.

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

Crystal Opal and Narsarsukite Chemical Formula

While comparing Crystal Opal 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 Crystal Opal and Narsarsukite chemical formula.

Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

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Crystal Opal Vs Dravite

Crystal Opal and Narsarsukite Specific Gravity

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