Precious Opal and Rutile Physical Properties

Precious Opal

Rutile

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.254.20-4.30

1 7.18

1.5 Fracture

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

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

5-6.56-6.5

2 10

1.8 Chemical Composition

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

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

Precious Opal and Rutile Chemical Formula

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

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

Compare Blue Gemstones

Precious Opal Vs Sapphire

Precious Opal Vs Sard

Precious Opal Vs Sardonyx

Precious Opal and Rutile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Precious Opal and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Rutile Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 4.20-4.30 whereas that of Rutile is 4.20-4.30.