1. 
   Pyritiferous
   Pyr`i·tif'er·ous adjective [ Pyrites + -ferous .] (Min.) Containing or producing pyrites.
   Found op http://www.encyclo.co.uk/webster/P/203
   
   
2. 
   pyritiferous
   <chemistry> Containing or producing pyrites. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?pyritiferous
   
   
3. 
   Pyritiferous
   • (a.) Containing or producing pyrites.
   Found op http://thinkexist.com/dictionary/meaning/pyritiferous/
   
   

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