Weloganite and Crystal Opal Physical Properties

Weloganite

Crystal 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

3.20-3.221.97-2.22

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

Perfect on pseudo {0001}

Not Available

1.7 Mohs Hardness

35.5-6.5

2 10

1.8 Chemical Composition

Not Available

SiO 2 + H 2OUlrich Henn and Claudio C.

Weloganite and Crystal Opal Chemical Formula

While comparing Weloganite and Crystal 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 Weloganite and Crystal Opal chemical formula.

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

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Weloganite and Crystal Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Weloganite and Crystal Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Weloganite and Crystal Opal Optical Properties during the identification of gemstone. Specific gravity of Weloganite is 1.97-2.22 whereas that of Crystal Opal is 1.97-2.22.