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Gahnite
Gahnite

Erythrite
Erythrite



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Gahnite
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Erythrite

Gahnite and Erythrite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.00-4.62
Conchoidal, Uneven
Indistinct parting on [111]
7.5-8
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Sectile
-
-
3.06
Sectile
Perfect on {010}; poor on {100} and { 1 02}.
-9999
Co3(AsO4)2•8(H2O)

Gahnite and Erythrite Chemical Formula

While comparing Gahnite and Erythrite 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 Gahnite and Erythrite chemical formula.

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Gahnite and Erythrite Specific Gravity

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