Rutile and Star Sapphire Physical Properties

Rutile

Star Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Insoluble in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.303.90-4.05

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

{110} good, 100 moderate, parting on {092} and {011}

Not Available

1.7 Mohs Hardness

6-6.5Not Available

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Al 2O 3Ulrich Henn and Claudio C.

Rutile and Star Sapphire Chemical Formula

While comparing Rutile and Star Sapphire 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 Rutile and Star Sapphire chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Red Gemstones

Rutile Vs Spessartine

Rutile Vs Star Ruby

Rutile Vs Stibiotantalite

Rutile and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rutile and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Rutile is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.