Boulder Opal and Vesuvianite Physical Properties

Boulder Opal

Vesuvianite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Vesuvianite is virtually insolouble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.253.32-3.43

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

Not Available

Poor on {110} and {100} very poor on {001}

1.7 Mohs Hardness

5-6.56-7

2 10

1.8 Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.

Not Available

Boulder Opal and Vesuvianite Chemical Formula

While comparing Boulder Opal and Vesuvianite 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 Boulder Opal and Vesuvianite chemical formula.

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

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Boulder Opal and Vesuvianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Vesuvianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Vesuvianite Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 3.32-3.43 whereas that of Vesuvianite is 3.32-3.43.