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Grandidierite and Oligoclase Physical Properties


Oligoclase and Grandidierite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.85-3.00   
2.62-2.67   

Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven   
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven   

Cleavage
Perfect   
From the Greek, oligos and kasein, little cleavage.   

Mohs Hardness
7.5   
6-6.5   

Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.   
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Grandidierite and Oligoclase Chemical Formula

While comparing Grandidierite and Oligoclase 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 Grandidierite and Oligoclase chemical formula.

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Grandidierite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grandidierite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.

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