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Andradite
Andradite

Zoisite
Zoisite



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Andradite
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Zoisite

Andradite and Zoisite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
-
-
-
3.20-3.50
Uneven, Conchoidal, Even
Perfect {010} imperfect {100}
6-7
Ca2Al3(SiO4)3(OH)

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 Vs Zoisite during the identification of gemstone. Specific gravity of Andradite is whereas that of Zoisite is .