Rutile and Petalite Physical Properties

Rutile

Petalite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Insoluble in acids

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.302.40

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

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

Perfect on {001}, poor on {201} with 38.5° angle between the two

1.7 Mohs Hardness

6-6.56-6.5

2 10

1.8 Chemical Composition

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

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Rutile and Petalite Chemical Formula

While comparing Rutile and Petalite 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 Petalite chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Red Gemstones

Rutile Vs Stibiotantalite

Rutile Vs Spessartine

Rutile Vs Star Ruby

Rutile and Petalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rutile and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Petalite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 2.40 whereas that of Petalite is 2.40.