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Vesuvianite
Erythrite
Erythrite and Vesuvianite Physical Properties


Physical Properties
Tenacity
-  
Sectile  
Solubility
-  
-  
Durability
-  
-  
Specific Gravity
3.32-3.43  
3.06  
Fracture
Conchoidal  
Sectile  
Cleavage
Poor on {110} and {100} very poor on {001}  
Perfect on {010}; poor on {100} and { 1 02}.  
Mohs Hardness
6-7  
-9999  
Chemical Composition
Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4  
Co3(AsO4)2•8(H2O)  
Optical Properties >>
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