After thinking about this  1. They know from surface + bulks what rock types has what in it .

                                             2. Sort of makes the eqipment redundent .

                                               on the other hand

                                               1. Why would you go anywhere without one ?

                                               2.You know exactly , no ball park maybe's .

Sort of like the MMI data no Jounal page on that . No discussion of the unusual high values .  If you did not know Barry before hand the average guy would walk away from this like they might from a SARS patient . Sort of like sitting Bobby Orr on the bench in the 7 th game .

But unfortunately some would use the knowledge to their advantage .  So we wait .

 

Cheers !