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Alunite and Chrysocolla Physical Properties


Chrysocolla and Alunite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.6-2.9   
2.00-2.45   

Fracture
Conchoidal, Uneven   
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

Cleavage
On {0001}, perfect   
none   

Mohs Hardness
3.5-4   
2-4   

Chemical Composition
KAl3(SO4)2(OH)6   
Cu2H2Si2O5(OH)4   

Optical Properties >>
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Alunite and Chrysocolla Chemical Formula

While comparing Alunite and Chrysocolla 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 Chrysocolla chemical formula.

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Alunite and Chrysocolla Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alunite and Chrysocolla Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Chrysocolla Optical Properties during the identification of gemstone. Specific gravity of Alunite is 2.00-2.45 whereas that of Chrysocolla is 2.00-2.45.

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