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Prase Opal and Amazonite Physical Properties


Physical Properties

Tenacity
-  
-  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
2.55-2.57  
1.98-2.25  

Fracture
Uneven  
Conchoidal  

Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal  
None  

Mohs Hardness
6-6.5  
5-6.5  

Chemical Composition
KAlSi3O8  
SiO 2 + H 2OUlrich Henn and Claudio C.  

Optical Properties >>
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