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Gahnospinel
Gahnospinel

Alunite
Alunite



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Gahnospinel
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Alunite

Gahnospinel and Alunite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.65-4.55
Conchoidal
None, but may exhibit slight parting
7.5-8
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Gahnospinel and Alunite Chemical Formula

While comparing Gahnospinel and Alunite 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 Gahnospinel and Alunite chemical formula.

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Gahnospinel and Alunite Specific Gravity

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