Hey Bloom:  using your numbers on Timmins Gold would give them a processing cost of over $1400 per oz.  Most open pit mines report total mining costs in the $15 to $20 per ton so I question your $27.54 per ton.

 

 

  • Ore Mining: (297,532 t) x ($6.70/t) = $1,993,464
  • Waste Mining: (5,328,528t) x ($2.98/t) = $15,879,013
  • Processing: (297,532t) x ($27.54/t) = $8,194,031
  • Administration: (297,532t) x ($11.82) = $3,516,828
  • Ore Haulage: (297,532t) x ($20.41) = $6,072,628

Read more at http://www.stockhouse.com/bullboards/messagedetail.aspx?p=0&m=32039215&l=0&r=0&s=BGM&t=LIST#07frv8FLXsPLvltf.99