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Hackmanite
Hackmanite

Andradite
Andradite



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Hackmanite
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Andradite

Hackmanite and Andradite 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)
 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Hackmanite and Andradite Chemical Formula

While comparing Hackmanite and Andradite 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 Andradite chemical formula.

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Hackmanite and Andradite Specific Gravity

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