Vishnevite and Prase Opal Physical Properties

Vishnevite

Prase Opal

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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

Not Available1.98-2.25

1 7.18

1.5 Fracture

Brittle, Uneven

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

1.6 Cleavage

Perfect

Not Available

1.7 Mohs Hardness

5-65-6.5

2 10

1.8 Chemical Composition

Not Available

SiO 2 + H 2OUlrich Henn and Claudio C.

Vishnevite and Prase Opal Chemical Formula

While comparing Vishnevite 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 Vishnevite and Prase Opal chemical formula.

Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Vishnevite and Prase Opal Specific Gravity

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