Weloganite and Boulder Opal Physical Properties

Weloganite

Boulder 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

3.20-3.221.98-2.25

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

Perfect on pseudo {0001}

Not Available

1.7 Mohs Hardness

35-6.5

2 10

1.8 Chemical Composition

Not Available

SiO 2 + H 2OUlrich Henn and Claudio C.

Weloganite and Boulder Opal Chemical Formula

While comparing Weloganite and Boulder 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 Boulder Opal chemical formula.

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

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Weloganite and Boulder Opal Specific Gravity

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