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Andalusite and Pyrope Almandine Physical Properties


Pyrope Almandine and Andalusite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.05-3.21   
3.62-4.20   

Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)   
ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)   

Cleavage
Good on {110}, poor on {100}   
Not Available   

Mohs Hardness
7.5   
7-7.5   

Chemical Composition
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   
(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)   

Optical Properties >>
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Andalusite and Pyrope Almandine Chemical Formula

While comparing Andalusite and Pyrope Almandine 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 Andalusite and Pyrope Almandine chemical formula.

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Andalusite and Pyrope Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Pyrope Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Pyrope Almandine Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 3.62-4.20 whereas that of Pyrope Almandine is 3.62-4.20.

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