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Rutile and Petalite Physical Properties


Petalite and Rutile Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Insoluble in acids   
insoluble   

Durability
Not Available   
Not Available   

Specific Gravity
4.20-4.30   
2.40   

Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)   
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal   

Cleavage
{110} good, 100 moderate, parting on {092} and {011}   
Perfect on {001}, poor on {201} with 38.5° angle between the two   

Mohs Hardness
6-6.5   
6-6.5   

Chemical Composition
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)   
LiAlSi 4O 10Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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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.

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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.

Red Gemstones

Red Gemstones


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