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Afghanite and Sugilite Physical Properties


Sugilite and Afghanite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.55-2.65   
2.69-2.79   

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

Cleavage
Perfect {10 1 0}   
Poor on {0001}   

Mohs Hardness
5.5-6   
5.5-6.5   

Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)   
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Afghanite and Sugilite Chemical Formula

While comparing Afghanite and Sugilite 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 Afghanite and Sugilite chemical formula.

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Afghanite and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.

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