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Amazonite
Prase Opal
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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