Chrysoprase and Prase Opal Physical Properties

Chrysoprase

Prase Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.4 Solubility

Not Available

1.7 Durability

Not Available

1.9 Specific Gravity

2.58-2.641.98-2.25

1 7.18

1.6 Fracture

Gems, Sixth Edition (2006)

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

1.7 Cleavage

None

Not Available

1.8 Mohs Hardness

6.5-75-6.5

2 10

1.11 Chemical Composition

SiO₂ (with a high level of nickel impurities )

SiO 2 + H 2OUlrich Henn and Claudio C.

Chrysoprase and Prase Opal Chemical Formula

While comparing Chrysoprase and Prase Opal 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 Chrysoprase and Prase Opal chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Chrysoprase and Prase Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysoprase and Prase Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoprase and Prase Opal Optical Properties during the identification of gemstone. Specific gravity of Chrysoprase is 1.98-2.25 whereas that of Prase Opal is 1.98-2.25.