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Riebeckite
Riebeckite

Hackmanite
Hackmanite



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Riebeckite
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Hackmanite

Riebeckite and Hackmanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.28-3.44
Uneven, Splintery
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
5.0-6.0
Na2Fe2+3Fe3+2Si8O22(OH)2
 
-
-
-
2.27-2.33
-
Perfect
5.5-6
Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Riebeckite and Hackmanite Chemical Formula

While comparing Riebeckite and Hackmanite 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 Riebeckite and Hackmanite chemical formula.

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Riebeckite and Hackmanite Specific Gravity

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