GSA Connects 2022 meeting in Denver, Colorado

Session No. 225
Wednesday, 12 October 2022: 8:00 AM-12:00 PM
503 (Colorado Convention Center)

T90. Gemological Research in the Twenty-First Century—Gem Minerals and Localities

Geochemical Society; Mineralogical Society of America

 

James Shigley, Wuyi Wang, Barbara Dutrow, John Valley and Caroline Nelms, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:05 AM
IRIDESCENT GEM MATERIALS AT THE NANOSCALE (Invited Presentation)
HEANEY, Peter1, LIN, Xiayang1 and POST, Jeffrey2, (1)Dept. of Geosciences, Pennsylvania State University, 540 Deike Bldg, University Park, PA 16802, (2)Department of Mineral Sciences, Smithsonian Institution, Washington, DC 20013
8:25 AM
SPECIAL COLORS AND OPTICAL EFFECTS OF OREGON SUNSTONE
JIN, Shiyun, PALKE, Aaron C., RENFRO, Nathan D. and SUN, Ziyin, Gemological Institute of America, 5345 Armada Dr., Carlsbad, CA 92008
8:40 AM
CLASSIFICATION OF GEM MATERIALS USING MACHINE LEARNING
HARDMAN, Matthew, EATON-MAGAÑA, Sally, HOMKRAJAE, Artitaya and BREEDING, Christopher M., Gemological Institute of America, 5355 Armada Dr, Carlsbad, CA 92008
 
8:55 AM
Break
9:00 AM
ORIGINS OF SECONDARY MONTANA SAPPHIRES: MELTS, MELTS, AND MORE MELTS
PALKE, Aaron, Gemological Institute of America (GIA), 5345 Armada Dr, Carlsbad, CA 92008
9:15 AM
COLOR ORIGIN OF COLOR CHANGE SAPPHIRE
SHEN, Che, Munsell Color Science Laboratory, Rochester Institute of Technology, 54 Lomb Memorial Drive, Rochester, NY 14623, PALKE, Aaron, Gemological Institute of America (GIA), 5345 Armada Dr, Carlsbad, CA 92008 and FAIRCHILD, Mark D., Munsell Color Science Lab, Rochester Institute of Technology, 54 Lomb Memorial Drive, COL-18-1066, Rochester, NY 14623
9:30 AM
APPLYING THERMOMETRIC TECHNIQUES TO MONTANA SAPPHIRE MINERAL INCLUSIONS
GOODSUHM, Alexander, PALKE, Aaron C., TURNIER, Rachelle and JIN, Shiyun, Gemological Institute of America (GIA), 5355 Armada Dr., Carlsbad, CA 92008
9:45 AM
CR3+ PHOTOLUMINESCENCE AND TRACE ELEMENT CORRELATIONS IN METAMORPHIC SAPPHIRE
TURNIER, Rachelle1, JIN, Shiyun2, SUN, Ziyin1 and PALKE, Aaron1, (1)Gemological Institute of America, Carlsbad, CA 92008, (2)Gemological Institute of America (GIA), 5355 Armada Dr., Carlsbad, CA 92008
 
10:00 AM
Break
10:05 AM
CU AND FE CONTRIBUTIONS TO THE COLOR OF CUPRIAN TOURMALINE: CHALLENGE FOR PARAÍBA NAME JUDGEMENT
KATSURADA, Yusuke, Gemological Institute of America (GIA Tokyo), Yamaguchi bldg 7, 11th floor, 4-19-9 Taito, Taito, Tokyo, CA 1100016, Japan, PALKE, Aaron C., Gemological Institute of America (GIA), 5355 Armada Dr., Carlsbad, CA 92008, SUN, Ziyin, Gemological Institute of America, Carlsbad, CA 92008 and VERTRIEST, Wim, Bangrak, GIA, U Chu Liang Building, 10th Floor, 968 Rama IV Road, Bangrak, Bangkok 10500, THAILAND
10:20 AM
PREDICTING THE CRYSTAL STRUCTURE OF BERYL FROM CHEMICAL ANALYSES
HENRY, Rhiana1, GROAT, Lee1, 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
10:35 AM
COMPARING A 910 CARAT TYPE IIA DIAMOND WITH SMALLER CLIPPIR DIAMONDS
SMITH, Evan M. and WANG, Wuyi, Gemological Institute of America, 50 W 47th Street, New York, NY 10036
 
10:50 AM
Break
10:55 AM
COMPOSITION OF THE LITHOSPHERIC MANTLE AND VOLATILE RECYCLING BENEATH THE WEST AFRICAN CRATON RECORDED BY KOIDU DIAMONDS
LAI, Mei Yan, Department of Earth and Atmospheric Sciences, University of Alberta, 116 St & 85 Ave, Edmonton, AB T6G 2R3, Canada; Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA CA 92008, STACHEL, Thomas, Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada, HARDMAN, Matthew F., Gemological Institute of America, 5355 Armada Dr, Carlsbad, CA 92008, STERN, Richard A., Canadian Centre for Isotopic Microanalysis, University of Alberta, 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB T6G 2E3, Canada, PEARSON, Graham D., Department of Earth and Atmospheric Sciences, University of Alberta, 116 St & 85 Ave, Edmonton, AB T6G 2R3, Canada and HARRIS, Jeff W., School of Geographical and Earth Sciences, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
11:10 AM
SPECTROSCOPIC RESPONSES OF DIAMOND DURING LOW-TEMPERATURE ANNEALING: ANALOGUE FOR RESIDENCE IN NATURAL SEDIMENTARY SYSTEMS
BASSOO Jr., Roy, Research, Gemological Institute of America, 5345 Armada Drive, The Robert Mouawad Campus, Carlsbad, CA 92084, BREEDING, Christopher, Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA 92008, HARDMAN, Matthew, Gemological Institute of America, 5355 Armada Dr, Carlsbad, CA 92008 and EATON-MAGAÑA, Sally, Gemological Institute of America (GIA), 5345 Armada Dr, Carlsbad, CA 92008
11:25 AM
PINK RADIATION DAMAGE IN NATURAL GEM DIAMOND
BREEDING, Christopher, PRICE, Jamie, SCHWARTZ, Virginia and LINZMEYER, Taryn, Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA 92008
 
11:40 AM
Discussion
 
11:55 AM
Concluding Remarks
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