2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

HARLOW, George E., Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, gharlow@amnh.org

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

SHIREY, Steven B.¹, SMIT, Karen V.², NESTOLA, Fabrizio³, STEELE, Andrew⁴, BULANOVA, Galina P.⁵ and SMITH, Chris B.⁵, (1)Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015, (2)Gemological Institute of America, 50 West 47 Street, New York, NY 10036, (3)Dipartimento di Geoscienze, Universita di Padua, Via Giotto 1, Padova, 35137, Italy, (4)Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC 20015, (5)Department of Earth Sciences, University of Bristol, Wills Memorial Building, Queen's Road, Bristol, BS8 1RJ, United Kingdom, sshirey@carnegiescience.edu

HART, Alan, The Natural History Museum, Department of Earth Sciences, Cromwell Road, London, SW7 5BD, United Kingdom, A.Hart@nhm.ac.uk

BYRNE, Keal S., Dept. of Mineral Sciences, Smithsonian Institution, Washington, DC 20013, POST, Jeffrey E., Dept. of Mineral Sciences, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012 and BUTLER, James E., Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia; Department of Physics, St. Petersburg Electrotechnical University, St. Petersburg, Russia, byrnek@si.edu

ALONSO-PEREZ, Raquel, Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, ralonso@fas.harvard.edu

PALKE, Aaron C.¹, RENFRO, Nathan D.¹ and BERG, Richard B.², (1)Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA 92008, (2)Montana Bureau of Mines and Geology, Montana Tech of the U. of Montana, 1300 W. Park St, Butte, MT 59701, aaron.palke@gia.edu

KOIVULA, John I., Research, Gemological Institute of America, 5345 Armada Drive, Carlsbad, CA 92008, RENFRO, Nathan D., Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA 92008 and STONE-SUNDBERG, Jennifer Leigh, 3138 SW Cascade Drive, Portland, OR 97205, jkoivula@gia.edu

CARTIER, Laurent E., Swiss Gemmological Institute SSEF, Aeschengraben 26, Basel, 4051, Switzerland; Institute of Earth Sciences, Faculty of Geosciences, University of Lausanne, Lausanne, 1015, Switzerland, MEYER, Joana Beatrice, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstrasse 111, Birmensdorf, 8903, Switzerland and KRZEMNICKI, MIchael S., Swiss Gemmological Institute SSEF, Aeschengraben 26, Basel, 4051, Switzerland, laurent.cartier@ssef.ch

LIN, Xiayang, Geosciences, Penn State Univeristy, 10 vairo blvd., Apt 5B, State College, PA 16803 and HEANEY, Peter, Geosciences, Penn State Univeristy, 540 Deike Building, Penn State University, University Park, PA 16802, sun.v.lin@gmail.com

KLYUKIN, Yury I.¹, SUBLETT, D. Matthew¹, MILLER, J. William², SPEER, Wade E.³ and BODNAR, R.J.¹, (1)Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, (2)Environmental Studies, University of North Carolina at Asheville, CPO 2330, Asheville, NC 28804, (3)Speer Minerals, Inc., 3947 Mudcut Road, Marion, NC 28752, yury84@vt.edu

SIMMONS, William B.¹, FALSTER, Alexander U.², FELCH, Myles² and FRANCIS, Carl A.³, (1)Research, Maine Mineral and Gem Museum, 99 Main Street, Bethel, ME 04217, (2)Research, Maine Mineral and Gem Museum, 99 Main St, Bethel, ME 04217, (3)Research, Maine Mineral and Gem Museum, 99 Main St., Bethel, ME 04217, wsimmons@uno.edu

WISE, Michael A., Dept. of Mineral Sciences, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, wisem@si.edu