Stibiotantalite and Star Ruby Physical Properties

Stibiotantalite

Star Ruby

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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 Available3.95-4.10

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

{???} Perfect

Not Available

1.7 Mohs Hardness

5.5-6Not Available

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Stibiotantalite and Star Ruby Chemical Formula

While comparing Stibiotantalite and Star Ruby 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 Star Ruby chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Stibiotantalite and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.