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Andradite and Franklinite Physical Properties


Franklinite 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   
5.05-5.22   

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

Cleavage
none   
None   

Mohs Hardness
6.5-7   
5.5-6   

Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Andradite and Franklinite Chemical Formula

While comparing Andradite and Franklinite 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 Franklinite chemical formula.

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Andradite and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.

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Green Gemstones


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