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Hackmanite
Hackmanite

Rock Crystal
Rock Crystal



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Hackmanite
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Rock Crystal

Hackmanite and Rock Crystal Physical Properties

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)
 
-
-
-
2.65
ConchoidalWalter Schumann
None
7
SiO 2Walter Schumann , Gemstones of the world (2001)

Hackmanite and Rock Crystal Chemical Formula

While comparing Hackmanite and Rock Crystal 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 Rock Crystal chemical formula.

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Hackmanite and Rock Crystal Specific Gravity

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