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Alunite and Moissanite Physical Properties


Moissanite and Alunite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
none   

Durability
Not Available   
Not Available   

Specific Gravity
2.6-2.9   
3.17-3.24   

Fracture
Conchoidal, Uneven   
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle   

Cleavage
On {0001}, perfect   
(0001) indistinct   

Mohs Hardness
3.5-4   
9-9.5   

Chemical Composition
KAl3(SO4)2(OH)6   
SiCArthur Thomas , Gemstones (2009)   

Optical Properties >>
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Alunite and Moissanite Chemical Formula

While comparing Alunite and Moissanite 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 Moissanite chemical formula.

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Alunite and Moissanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alunite and Moissanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Moissanite Optical Properties during the identification of gemstone. Specific gravity of Alunite is 3.17-3.24 whereas that of Moissanite is 3.17-3.24.

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