Crystal Opal and Sunstone Physical Properties

Crystal Opal

Sunstone

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.97-2.222.62-2.65

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

Not Available

001

1.7 Mohs Hardness

5.5-6.56

2 10

1.8 Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Crystal Opal and Sunstone Chemical Formula

While comparing Crystal Opal and Sunstone 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 Sunstone chemical formula.

Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Compare Yellow Gemstones

Crystal Opal Vs Diopside

Crystal Opal Vs Diaspore

Crystal Opal Vs Dravite

Crystal Opal and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crystal Opal and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Opal and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Crystal Opal is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.