Stibiotantalite and Precious Opal Physical Properties

Stibiotantalite

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

Not Available1.98-2.25

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

{???} Perfect

Not Available

1.7 Mohs Hardness

5.5-65-6.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

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

Stibiotantalite and Precious Opal Chemical Formula

While comparing Stibiotantalite 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 Stibiotantalite and Precious Opal chemical formula.

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

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Stibiotantalite and Precious Opal Specific Gravity

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