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Neptunite and Pleonaste Physical Properties


Pleonaste and Neptunite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.19-3.23   
3.80   

Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle   
Not Available   

Cleavage
{110} good   
Not Available   

Mohs Hardness
5-6   
8   

Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael O’Donoghue , Gems, Sixth Edition (2006)   
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)   

Optical Properties >>
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Neptunite and Pleonaste Chemical Formula

While comparing Neptunite and Pleonaste 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 Neptunite and Pleonaste chemical formula.

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Neptunite and Pleonaste Specific Gravity

Another important criteria for qualitative analysis of gemstones is Neptunite and Pleonaste Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Pleonaste Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 3.80 whereas that of Pleonaste is 3.80.

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