copper oxide or sulphide ores which is better, page-8

Just noticed I left out the link for the Olympic Dam update in my previous post.

Here it is :

http://www.bhpbilliton.com/home/aboutus/regulatory/Documents/Olympic%20Dam%20Supplementary%20EIS/Information%20Sheets/BHP%20Billiton%20Olympic%20Dam%20Expansion%202011%20Summary%20Booklet.pdf

apologies for the double post last night.. I'll use the old "Fat finger" excuse while trying to paste the pic of the Escondida mine.

For a good basic visualisation of the metallurgical process in Copper separation just go to this link:

http://www.citycollegiate.com/dblock4.htm

At least it's free.

Cheers

HR