Uvarovite and Precious Opal Physical Properties

Uvarovite

Precious Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.771.98-2.25

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

6.5-7.55-6.5

2 10

1.8 Chemical Composition

Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.

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

Uvarovite and Precious Opal Chemical Formula

While comparing Uvarovite 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 Uvarovite and Precious Opal chemical formula.

Chemical formula of Uvarovite- Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

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Uvarovite and Precious Opal Specific Gravity

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