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Forsterite and Andalusite Physical Properties


Andalusite and Forsterite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.23-3.26   
3.05-3.21   

Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle   
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)   

Cleavage
Perfect on {010} imperfect on {100}   
Good on {110}, poor on {100}   

Mohs Hardness
6.5-7   
7.5   

Chemical Composition
Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   

Optical Properties >>
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Forsterite and Andalusite Chemical Formula

While comparing Forsterite and Andalusite 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 Forsterite and Andalusite chemical formula.

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Forsterite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.

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Green Gemstones


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