Hauyne and Common Opal Physical Properties

Hauyne

Common Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Gelatinises in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.4-2.51.98-2.50

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

Distinct on {110}

Not Available

1.7 Mohs Hardness

5-65.5-6.5

2 10

1.8 Chemical Composition

(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

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

Hauyne and Common Opal Chemical Formula

While comparing Hauyne and Common 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 Hauyne and Common Opal chemical formula.

Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Hauyne and Common Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hauyne and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hauyne and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Hauyne is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.