GSA 2020 Connects Online

EBY, G. Nelson, Environmental, Earth & Atmospheric Sciences, University of Massachusetts, Lowell, MA 01854, BEAUDOIN, Casey, Environmental,Earth, and Atmospheric Sciences, University of Massachusetts Lowell, 1 University Avenue, Lowell, MA 01854 and MARIANO, Anthony, 46 Page Brook Rd, Carlisle, MA 01741

HENRY, Rhiana¹, GROAT, Lee A.¹, EVANS, R. James¹, CEMPÍREK, Jan² and ŠKODA, Radek², (1)Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada, (2)Department of Geological Sciences, Masaryk University, Brno, 611 37, Czech Republic

BADUR, Çisil Bengisu¹, CAHOON, Emily B.², KAMENOV, George³ and HAMES, Willis E.¹, (1)Department of Geosciences, Auburn University, 2050 Memorial Coliseum, Auburn, AL 36849, (2)Department of Geology, Portland State University, PO Box 751, Portland, OR 97207, (3)Department of Geological Sciences, University of Florida, Gainesville, FL 32611

JIN, Shiyun¹, SUN, Ziyin¹, SMIT, Karen V.² and PALKE, Aaron C.¹, (1)Gemological Institute of America (GIA), 5345 Armada Dr, Carlsbad, CA 92008, (2)Gemological Institute of America (GIA), 50 W 47th St, New York, NY 10036

XU, Wenxing, Gübelin Gem Lab, Maihofstrasse 102, Lucerne, 6006, Switzerland

VERTRIEST, Wim, Supervisor, Field Gemology, Gemological Institute of America, U Chu Liang Building, 10th Floor, 968 Rama IV Road, Bangrak, 10500, Thailand and PALKE, Aaron C., Gemological Institute of America (GIA), 5355 Armada Dr, Carlsbad, CA 92008

DAVER, Lucille M.G.¹, BUREAU, Hélène², BOULARD, Eglantine², GAILLOU, Eloïse³, CARTIGNY, Pierre⁴, BELHADJ, Oulfa⁵, GUIGNOT, Nicolas⁶, FOY, Eddy⁷, ESTÈVE, Imène² and PINTI, Daniele L.⁸, (1)Earth sciences and atmosphere, University of Quebec in Montreal, 201, avenue Président-Kennedy,, Pavillon Président-Kennedy, local PK-2150, Montreal, QC H2X 3Y7, Canada, (2)Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, 4 place Jussieu, Paris, 75252, France, (3)Musee de mineralogie, Mines ParisTech, 60, Bd St. Michel, Paris, 75006, France, (4)Laboratoire de Géochimie des Isotopes Stables, Institut de Physique du Globe de Paris, Université Paris Denis-Diderot, 1 rue Jussieu, Paris, 75005, France, (5)Centre de recherche sur la conservation, Muséum National d’Histoire Naturelle, Paris, 75005, France, (6)PSICHÉ beamline, Synchrotron Soleil, Gif-sur-Yvette, 91191, France, (7)CEA, CNRS, NIMBE/LAPA, Université Paris-Saclay, Gif-sur-Yvette, 91191, France, (8)GEOTOP-UQAM-McGill, Université du Québec à Montréal, Succ. Centre-Ville, CP 8888, Montréal, QC H3C 3P8, Canada

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

MA, Ping, ChinaUniversityofGeoscience, GemmologicalInstitute, 388 Lumo Road, Wuhan City, Hubei Province,China, Wuhan, 430074, China; Hubei Land Resources Vocational College, Department of Resources and Jewelry, 399 Yucai Road, Wuhan Economic and Technological Development Zone (Hannan), Wuhan, 430090, China

CUI, Di, LIAO, Zong-ting, QI, Li-jian, ZHOU, Zheng-yu and ZHONG, Qian, Gems & Technological Material Lab., Tongji University, Boyi Bldg., Suite 707 , North Zhongshan Rd., Shanghai, 200070, China; School of Ocean and Earth Science, Tongji University, Siping Rd., Shanghai, 200092, China; Engineering Research Center of Gems & Technological Materials, Tongji University, Boyi Bldg., Suite 709 , North Zhongshan Rd., Shanghai, 200070, China

CUI, Di¹, LIAO, Zong-ting¹, QI, Li-jian¹, ZHOU, Zheng-yu², ZHONG, Qian³ and LAI, Meng⁴, (1)Engineering Research Center of Gems & Technological Materials, Tongji University, Boyi Bldg., Suite 709 , North Zhongshan Rd., Shanghai, 200070, China; School of Ocean and Earth Science, Tongji University, Siping Rd., Shanghai, 200092, China; Gems & Technological Material Lab., Tongji University, Boyi Bldg., Suite 707 , North Zhongshan Rd., Shanghai, 200070, China, (2)Gems & Technological Material Lab., Tongji University, Boyi Bldg., Suite 707 , North Zhongshan Rd., Shanghai, 200070, China; Engineering Research Center of Gems & Technological Materials, Tongji University, Boyi Bldg., Suite 709 , North Zhongshan Rd., Shanghai, 200070, China; School of Ocean and Earth Science, Tongji University, Siping Rd., Shanghai, 200092, China, (3)Shanghai; Shanghai; School of Ocean and Earth Science, Tongji University, Siping Rd., Shanghai, 200092, China, (4)Gems & Technological Material Lab., Tongji University, Boyi Bldg., Suite 707 , North Zhongshan Rd., Shanghai, 200070, China; Shanghai; School of Ocean and Earth Science, Tongji University, Siping Rd., Shanghai, 200092, China

MYAGKAYA, Elina, Gemological Institute of America, 50 west 47th Street, New York City, NY 10036, JOHNSON, Paul, Gemological Institute of America, New York, NY 10036 and PERSAUD, Stephanie, Gemological Institute of America, 50 W 47th Street, New York City, NY 10036