Benitoite and Precious Opal Physical Properties

Benitoite

Precious Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Insoluble: HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.61-3.681.98-2.25

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references

1.6 Cleavage

[10 1 1] poor

Not Available

1.7 Mohs Hardness

6-6.55-6.5

2 10

1.8 Chemical Composition

BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO 2 · nH 2OGemdat.org , Management Team (2012)

Benitoite and Precious Opal Chemical Formula

While comparing Benitoite and Precious 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 Benitoite and Precious Opal chemical formula.

Chemical formula of Benitoite- BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

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Benitoite and Precious Opal Specific Gravity

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