Anatase and Boulder Opal Physical Properties

Anatase

Boulder Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.82-3.97

1.98-2.25

1.5 Fracture

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

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

1.6 Cleavage

Perfect on [001] and [011]

Not Available

1.7 Mohs Hardness

5.5-6

5-6.5

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

SiO 2 + H 2OUlrich Henn and Claudio C.

Anatase and Boulder Opal Chemical Formula

While comparing Anatase 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 Anatase and Boulder Opal chemical formula.

Chemical formula of Anatase- TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Anatase and Boulder Opal Specific Gravity

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