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Pargasite and Brookite Physical Properties


Brookite and Pargasite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.04-3.26   
3.87-4.14   

Fracture
Splintery, Brittle, Uneven   
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   

Cleavage
{110} perfect   
Poor on {120}, in traces on {001}   

Mohs Hardness
5-6   
5.5-6   

Chemical Composition
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)   
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Pargasite and Brookite Chemical Formula

While comparing Pargasite and Brookite 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 Pargasite and Brookite chemical formula.

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Pargasite and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.

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Green Gemstones


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