Slippery,It can be a mistake to compare ourselves with giants...

Slippery,
It can be a mistake to compare ourselves with giants but for a little perspective here is some info on LYC and ARU from;

http://www.proactiveinvestors.com/companies/news/9051/eleven-rare-earth-companies-to-watch-including-molycorp-lynas-greenland-minerals-avalon-arafura-and-m

LYC 3.5km diameter, 8% av grade, 20m to 50m, $3.5b mc
ARU 2 km diameter, 2.5% av grade, surface to 75m $540 mc
PEK 3.7km diameter, ?? av grade, surface to 40m+?? $80m mc

A very rough comparison that doesn't take into account proximity to infrastructure and about a hundred other factors but gives a basic starting point which will no doubt bring out the experts, which is what we want.

*and we are at a much earlier stage in defining the depth and grade of our own monster.