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Hackmanite
Hackmanite

Sard
Sard



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Hackmanite
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Sard

Hackmanite and Sard Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.27-2.33
-
Perfect
5.5-6
Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Hackmanite and Sard Chemical Formula

While comparing Hackmanite and Sard 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 Hackmanite and Sard chemical formula.

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Hackmanite and Sard Specific Gravity

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