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Alunite and Kainite Physical Properties


Kainite and Alunite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Soluble   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.6-2.9   
2.15   

Fracture
Conchoidal, Uneven   
Splintery, Conchoidal, Brittle   

Cleavage
On {0001}, perfect   
{001}, perfect   

Mohs Hardness
3.5-4   
2.5-3   

Chemical Composition
KAl3(SO4)2(OH)6   
Not Available   

Optical Properties >>
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Alunite and Kainite Chemical Formula

While comparing Alunite and Kainite 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 Alunite and Kainite chemical formula.

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Alunite and Kainite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alunite and Kainite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Kainite Optical Properties during the identification of gemstone. Specific gravity of Alunite is 2.15 whereas that of Kainite is 2.15.

Red Gemstones

Red Gemstones


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