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Hardystonite
Hardystonite
☒

Neptunite
Neptunite
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Hardystonite
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Neptunite

Hardystonite and Neptunite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.396-3.443
-
[001] good, [100] and [110] fair
3-4
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
 
Brittle
-
-
3.19-3.23
Conchoidal
{110} good
5-6
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael O’Donoghue , Gems, Sixth Edition (2006)

Hardystonite and Neptunite Chemical Formula

While comparing Hardystonite and Neptunite 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 Hardystonite and Neptunite chemical formula.

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Hardystonite and Neptunite Specific Gravity

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