GSA Annual Meeting in Indianapolis, Indiana, USA - 2018

BREEDING, Christopher M., Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA 92008

EATON-MAGANA, Sally and BREEDING, Christopher, Gemological Institute of America, Carlsbad, CA 92653

SUNDELL, Tyler, Department of Geography, Geology, and Planning, Missouri State University, 901 S. National Ave, Springfield, MO 65897 and MICHELFELDER, Gary S., Department of Geography, Geology, and Planning, Missouri State University, 901 S. National Ave., Springfield, MO 65897

SMIT, Karen V., Gemological Institute of America, 50 W 47th Street, New York, NY 10036, MYAGKAYA, Elina, Gemological Institute of America, 50 west 47th Street, New York City, NY 10036, PERSAUD, Stephanie, Gemological Institute of America, 50 W 47th Street, New York City, NY 10036 and WANG, Wuyi, Gemological Institute of America, 50 west 47 Street, New York City, NY 10036

SMITH, Evan M. and SMIT, Karen V., Gemological Institute of America, 50 W 47th Street, New York, NY 10036

HARMON, Russell, Department of Marine, Earth Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, THROCKMORTON, Chandra S., Department of Electrical and Computer Engineering, Duke University, Durham, NC 27708, HARK, Richard R., Institute for the Preservation of Cultural Heritage, Yale University, New Haven, CT 06516 and WISE, Michael, Department of Mineral Sciences, Smithsonian Institution, Washington, DC 20560

SMITH, Rod, Geological Survey of Canada, 3303-33rd St NW, Calgary, AB T2L 2A7, Canada

GU, Tingting¹, VALLEY, John², KITAJIMA, Kouki², SPICUZZA, Michael J.², FOURNELLE, John H.², STERN, Richard³, OHFUJI, Hiroaki⁴ and WANG, Wuyi¹, (1)Gemological Institute of America, 50 west 47 Street, New York, NY 10036, (2)Department of Geoscience, University of Wisconsin–Madison, 1215 W Dayton Street, Madison, WI 53706, (3)Canadian Centre for Isotopic Microanalysis, Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada, (4)Geodynamics Research Center (GRC), Ehime University, Matsuyama, 790-8577, Japan

KREBS, Mandy Y.¹, PEARSON, D. Graham², FAGAN, Andrew J.³ and SARKAR, Chiranjeeb², (1)GEMOLOGICAL INSTITUTE OF AMERICA, 50 W 47th St, New York, NY 10036, (2)Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada, (3)Hummingbird Geological Services, Vancouver, BC V6B 1L8, Canada

TURNIER, Rachelle B., Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton Street, Madison, WI 53706, VALLEY, John W., Department of Geoscience, University of Wisconsin–Madison, 1215 W Dayton Street, Madison, WI 53706 and PALKE, Aaron, Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA 92008

NACHLAS, William O. and THOMAS, Jay B., Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244

HEANEY, Peter J.¹, POST, Jeffrey E.², CHEN, Si Athena¹, CLARK, Trevor³, WENZEL, Tobias⁴, JACUCCI, Gianni⁵ and VIGNOLINI, Silvia⁵, (1)Dept. of Geosciences, Penn State University, 540 Deike Bldg, University Park, PA 16802, (2)Dept. of Mineral Sciences, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, (3)Materials Characterization Laboratory, The Pennsylvania State University, 208 MRL Bldg, University Park, PA 16802, (4)European Molecular Biology Laboratory, Meyerhofstraße 1, Heidelberg, 69117, Germany, (5)Dept. of Chemistry, Cambridge University, Lensfield Road, Cambridge, CB2 1EW, United Kingdom

DUTROW, Barbara L.¹, HENRY, Darrell J.¹ and SUN, Ziyin², (1)Department of Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803, (2)Gemological Institute of America (GIA), 5355 Armada Dr, Carlsbad, CA 92008

ZHOU, Chunhui, Gemological Institute of America, 50 W 47th St., New York, NY 10036, ORLAND, Ian J., WiscSIMS, Department of Geoscience, University of Wisconsin–Madison, 1215 W Dayton Street, Madison, WI 53706, MYAGKAYA, Elina, Gemological Institute of America, 50 west 47th Street, New York City, NY 10036, HOMKRAJAE, Artitaya, Gemological Institute of America, 5345 Armada Drive, Carlsbad, CA 92008 and VALLEY, John, Department of Geoscience, University of Wisconsin, Madison, WI 53706