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Herderite
Chalcopyrite
Chalcopyrite and Herderite Physical Properties


Physical Properties
Tenacity
-  
Brittle  
Solubility
-  
Soluble  
Durability
-  
-  
Specific Gravity
2.90-3.02  
4.1-4.3  
Fracture
Subconchoidal, Conchoidal  
Uneven  
Cleavage
Indistinct on {110}  
Indistinct on {011}  
Mohs Hardness
5-5.5  
3.5-4  
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.  
CuFeS 2Anthony et al , Handbook of mineralogy (2001)  
Optical Properties >>
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