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Andradite and Phlogopite Physical Properties


Phlogopite and Andradite Physical Properties


Physical Properties

Tenacity
Brittle   
Tough   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.70-4.10   
2.78-2.85   

Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)   
None, Uneven   

Cleavage
none   
Perfect basal (001)   

Mohs Hardness
6.5-7   
2-2.5   

Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
Not Available   

Optical Properties >>
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Andradite and Phlogopite Chemical Formula

While comparing Andradite and Phlogopite 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 Phlogopite chemical formula.

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Andradite and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.

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