a1 inXitu, P.O. Box 730, Mountain View, California 94042
a2 NASA Ames Research Center, MS 239-4, Moffett Field, California 94035
a3 Los Alamos National Laboratory, MS D469, Los Alamos, New Mexico 87545
a4 Indiana University, 1001 E 10th Street, Bloomington, Indiana 47405
CheMin is a miniature X-ray diffraction/X-ray fluorescence instrument that is included in the payload of the Mars 2009 Mars Science Laboratory mission. A portable CheMin prototype was built to test the capability of the instrument for remote in situ mineralogical characterization of geological materials. The instrument was successfully deployed at a variety of Mars analog sites in Death Valley, CA, in May 2004.
(Received October 31 2004)
(Accepted March 22 2005)