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Andradite and Zoisite Physical Properties


Zoisite and Andradite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.70-4.10   
3.20-3.50   

Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)   
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even   

Cleavage
none   
Perfect {010} imperfect {100}   

Mohs Hardness
6.5-7   
6-7   

Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
Ca2Al3(SiO4)3(OH)   

Optical Properties >>
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Andradite and Zoisite Chemical Formula

While comparing Andradite and Zoisite 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 Andradite and Zoisite chemical formula.

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Andradite and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.

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Green Gemstones


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