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Prehnite and Grossular Physical Properties


Grossular and Prehnite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.80-2.95   
3.55-3.73   

Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic   
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   

Cleavage
Distinct on [001]   
none   

Mohs Hardness
6-6.5   
7-7.5   

Chemical Composition
Ca2Al2Si3O12(OH)   
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Prehnite and Grossular Chemical Formula

While comparing Prehnite and Grossular 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 Prehnite and Grossular chemical formula.

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Prehnite and Grossular Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prehnite and Grossular Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Grossular Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 3.55-3.73 whereas that of Grossular is 3.55-3.73.

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