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Re: WidowMaker post# 96151

Tuesday, 01/18/2011 10:00:03 AM

Tuesday, January 18, 2011 10:00:03 AM

Post# of 165855
Widow:
Fantastic table. Juts curious as to why you use 90% as a recovery rate (sorry if this has been discussed before)? This seem quite high. This article for example mentions 55% as common RR.
http://www.moly.com/Moly+News/MetalsNews/Dr+Allen+M.+Alper/FEATURED9/Commerce+Resources++the+next+Canadian+Tantalum+and+Niobium+Mine.htm
It does however hints that mineral close to the surface clearly yield higher rates.
Projections remain remain excellent even with lower rate (just a bit less mind boggling).
best
*K