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Probe folks,

Does anyone know of published (or even unpublished) values for cobalt in San Carlos, AZ olivine?  How about Harrat al Kishb, Saudi Arabia forsterite?  Both concentrations should be in low three-digit ppm range.  I'd like to know because I'm trying to check our accuracy at measuring Co in olivine at such a level.

Thanks,
Ellery

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Ellery Frahm
Senior Research Fellow, Department of Geology & Geophysics
Manager & Principal Analyst, Electron Microprobe Lab
Doctoral Candidate, Department of Anthropology
University of Minnesota - Twin Cities campus
Lab website: http://probelab.geo.umn.edu/
Personal: http://web.mac.com/elleryfrahm/