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Gahnite
Gahnite

Anhydrite
Anhydrite



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Gahnite
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Anhydrite

Gahnite and Anhydrite 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)
 
Brittle
-
-
2.90-2.98
Conchoidal
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
3.5
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Gahnite and Anhydrite Chemical Formula

While comparing Gahnite and Anhydrite 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 Anhydrite chemical formula.

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Gahnite and Anhydrite Specific Gravity

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