Rutile and Precious Opal Physical Properties

Rutile

Precious Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Insoluble in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.301.98-2.25

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

{110} good, 100 moderate, parting on {092} and {011}

Not Available

1.7 Mohs Hardness

6-6.55-6.5

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Rutile and Precious Opal Chemical Formula

While comparing Rutile 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 Rutile and Precious Opal chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

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Rutile and Precious Opal Specific Gravity

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