Stibiotantalite and Crystal Opal Physical Properties

Stibiotantalite

Crystal 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 Available1.97-2.22

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{???} Perfect

Not Available

1.7 Mohs Hardness

5.5-65.5-6.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

SiO 2 + H 2OUlrich Henn and Claudio C.

Stibiotantalite and Crystal Opal Chemical Formula

While comparing Stibiotantalite and Crystal 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 Crystal Opal chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Stibiotantalite and Crystal Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Crystal Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Crystal Opal Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 1.97-2.22 whereas that of Crystal Opal is 1.97-2.22.