STACHEL, Thomas¹, STERN, Richard A.², PETTS, Duane¹, NICHOLS, Katie¹, and CHACKO, Tom³, (1) Earth and Atmospheric Sciences, University of Alberta, 1-24 ESB, Edmonton, AB T6G 2E3, Canada, tstachel@ualberta.ca, (2) Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB T6G 2E3, Canada, (3) Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada

GAILLOU, Eloïse, Department of Mineral Sciences, NHMLAC, 900 Exposition Bvd, Los Angeles, CA 90007, eloise.gaillou@gmail.com, POST, Jeffrey E., Dept. of Mineral Sciences, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, STEELE, Andrew, Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, DC 20015, and BUTLER, James E., Chemistry Division, Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375

WIRTH, R., 3.3 Chemistry and Physics of Earth Materials, GFZ Potsdam, Telegrafenberg, Potsdam 14473 Germany, wirth@gfz-potsdam.de

WANG, Wuyi¹, D'HAENENS-JOHANSSON, Ulrika¹, SMIT, Karen¹, BREEDING, Christopher M.², and STERN, Richard³, (1) Gemological Institute of America, 50 West 47 Street, New York, NY 10036, wwang@gia.edu, (2) Gemological Institute of America, 5345 Armada Drive, Carlsbad, CA 92008, (3) Canadian Centre for Isotopic Microanalysis, Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, T6G 2E3, Canada

SMIT, Karen V.¹, WANG, Wuyi¹, SHIREY, Steven B.², and WANG, Jianhua², (1) Gemological Institute of America, 50 West 47 Street, New York, NY 10036, ksmit@gia.edu, (2) Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015

BARWOOD, Henry L., Chemistry and Physics, Troy University, MSCX 312G, Troy, AL 36082, hbarwood@troycable.net

BREEDING, Christopher M., Gemological Institute of America, 5345 Armada Drive, Carlsbad, CA 92008, christopher.breeding@gia.edu and WANG, Wuyi, Gemological Institute of America, 50 West 47 Street, New York, NY 10036

ARDON, Troy, Identification, Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA 92008, troy.ardon@gia.edu and MAGANA, Sally, Gemological Institute of America, Carlsbad, CA 92653

LUTH, Robert and STACHEL, Thomas, Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada, robert.luth@ualberta.ca

KREBS, Mandy Y., Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G2E3, Canada, krebs@ualberta.ca, PEARSON, D. Graham, Department of Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Alberta, T6G 2E3, Canada, STACHEL, Thomas, Earth and Atmospheric Sciences, University of Alberta, 1-24 ESB, Edmonton, AB T6G 2E3, Canada, STERN, Richard A., Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB T6G 2E3, Canada, NOWICKI, Tom, Mineral Services Canada, 501 - 88 Lonsdale Avenue, North Vancouver, BC V7M 2E6, Canada, and CAIRNS, Scott, Northwest Territories Geoscience Office, P.O. Box 1320, Yellowknife, NT X1A 2L9, Canada

PALOT, Mederic, Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3 Canada, palot@ualberta.ca

KOSMAN, Charles W.¹, KOPYLOVA, Maya G.¹, HAGADORN, James W.², and HURLBUT, James F.², (1) Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, 2020 - 2207 Main Mall, Vancouver, BC V6T1Z4, Canada, ckosman@eos.ubc.ca, (2) Department of Earth Sciences, Denver Museum of Nature & Science, 2001 Colorado Blvd, Denver, CO 80205