The Collaborative International Dictionary of English v.0.48:

Auriferous \Au*rif"er*ous\, a. [L. aurifer; aurum gold + ferre
   to bear: cf. F. aurif[`e]re.]
   Gold-bearing; containing or producing gold.
   [1913 Webster]

         Whence many a bursting stream auriferous plays.
                                                  --Thomson.
   [1913 Webster]

   Auriferous pyrites, iron pyrites (iron disulphide),
      containing some gold disseminated through it.
      [1913 Webster]

WordNet (r) 3.0 (2006):

auriferous
    adj 1: containing gold; "auriferous quartz veins" [syn:
           auriferous, gold-bearing]