Hyalite and Boulder Opal Physical Properties

Hyalite

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

Not Available1.98-2.25

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001)

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

5.5-6.55-6.5

2 10

1.8 Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

SiO 2 + H 2OUlrich Henn and Claudio C.

Hyalite and Boulder Opal Chemical Formula

While comparing Hyalite 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 Hyalite and Boulder Opal chemical formula.

Chemical formula of Hyalite- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Hyalite and Boulder Opal Specific Gravity

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