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Gahnite
Gahnite

Caledonite
Caledonite



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Gahnite
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Caledonite

Gahnite and Caledonite Physical Properties

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
-
-
5.6-5.76
Uneven
[001] perfect; [100] distinct
2.5-3
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Gahnite and Caledonite Chemical Formula

While comparing Gahnite and Caledonite 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 Caledonite chemical formula.

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Gahnite and Caledonite Specific Gravity

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