GSA Connects 2024 Meeting in Anaheim, California

Session No. 164
Tuesday, 24 September 2024: 8:00 AM-12:00 PM
207A (Anaheim Convention Center)

T114. Gem Minerals, Localities and Geological Significance

 

James Shigley and Barbara Dutrow, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:05 AM
PROVENANCE OF GEMSTONES: CURRENT STATUS AND THE FUTURE (Invited Presentation)
SHEN, Andy, Gemmological Institute, China University of Geosciences (Wuhan), 388 Lumo Rd., Wuhan, Hubei 430074, China
8:25 AM
U-Pb GEOCHRONOLOGY OF GEM TSAVORITE AND DEMANTOID GARNET: IMPLICATIONS FOR HIGH-PRECISION GEOGRAPHIC ORIGIN DETERMINATION
ARDEN, Sarah, Gemological Institute of America, 50 West 47th Street, 8th Floor, New York, NY 10036, HOARE, Brendan C., National High Magnetic Field Laboratory, Florida State University, 1800 E Paul Dirac Dr, Tallahassee, FL 32310, PALKE, Aaron, Gemological Institute of America (GIA), 5345 Armada Dr, Carlsbad, CA 92008 and O'SULLIVAN, Gary, Department of Geology, Trinity College Dublin, Dublin, Dublin 2, Ireland
8:40 AM
NANOPARTICLES IN NATURAL BERYLLIUM-BEARING SAPPHIRES
JIN, Shiyun1, SAXEY, David2, QUADIR, Zakaria2, REDDY, Steven3, RICKARD, William2, FOUGEROUSE, Denis3, SUN, Xiao2 and PALKE, Aaron1, (1)Gemological Institute of America (GIA), 5355 Armada Dr., Carlsbad, CA 92008, (2)John de Laeter Centre, Curtin University, GPO Box U1987, Perth, Western Australia, Australia, (3)School of Earth and Planetary Sciences, Curtin University, GPO Box U1987, Perth, Western Australia, Australia
8:55 AM
GEOCHEMICAL TRENDS OF BERYL TRACE ELEMENTS: EXPECTATIONS MET AND UNMET
HENRY, Rhiana1, HARDMAN, Matthew2, HAZEN, Robert M.3 and PRABHU, Anirudh3, (1)Colored Stones Research, Gemological Institute of America, 5355 Armada Drive, Carlsbad, CA 92008, (2)Gemological Institute of America, 5355 Armada Dr, Carlsbad, CA 92008, (3)Earth and Planets Laboratory, Carnegie Institution for Science, 5251 Broad Branch Road NW, Washington, DC 20015
9:10 AM
A GIANT GEM CORUNDUM DEPOSIT IN RHYOLITIC IGNIMBRITE: THE ENIGMATIC ROCK CREEK SAPPHIRE DEPOSIT, MONTANA, USA
BELLEY, Philippe and BRODERS, Jake, Department of Earth Sciences, Memorial University of Newfoundland, 9 Arctic Avenue, room ER-4063, St. John's, NF A1B 3X5, Canada
9:25 AM
LARGE, GEM-QUALITY PRIMARY SAPPHIRES FROM THE FRENCH BAR SILL, MONTANA: IMPLICATIONS FOR THE ORIGINS OF ALLUVIAL MISSOURI RIVER SAPPHIRE
PALKE, Aaron C., Gemological Institute of America (GIA), 5345 Armada Dr, Carlsbad, CA 92008, KANE, Robert E., Fine Gems International, Helena, MT 59624, TURNIER, Rachelle B., Gemological Institute of America (GIA), 5355 Armada Dr., Carlsbad, CA 92008, BERG, Richard B., Montana Bureau of Mines and Geology at Montana Tech of the University of Montana, Butte, MT 59701 and PETTMAN, Kory L., Kory Pettman Gems, San Antonio, TX 78070
9:40 AM
VATERITE FOUND IN SALTWATER NATURAL PEARLS FROM PINCTADA SP. MOLLUSK
ZHOU, Chunhui1, JIN, Shiyun2, HOMKRAJAE, Artitaya2, MYAGKAYA, Elina1, ATCHALAK, Ravenya3 and ALALAWI, Abeer2, (1)Gemological Institute of America, New York, NY 10036, (2)Gemological Institute of America (GIA), 5345 Armada Dr, Carlsbad, CA 92008, (3)Gemological Institute of America, Bangkok, Thailand
 
9:55 AM
Break
10:05 AM
HIGH RESOLUTION LUMINESCENCE AND RAMAN 3D HYPERSPECTRAL IMAGING OF GEMSTONES (Invited Presentation)
JONES, Daniel1, TOWBIN, Henry2, SMITH, Evan2, TSAI, Tsung-Han1 and WANG, Wuyi2, (1)Gemological Institute of America (GIA), 333 Meadowlands Pkwy, Suite 105, Secaucus, NJ 07094, (2)Gemological Institute of America, 50 W 47th Street, New York, NY 10036
10:25 AM
SUBDUCTED SEDIMENTS RECORDED BY MINERAL INCLUSIONS IN KOIDU DIAMONDS FROM THE WEST AFRICAN CRATON
LAI, Mei Yan, Gemological Institute of America, 5355 Armada Dr, Carlsbad, CA 92008; Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada, 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, PEARSON, D. Graham, Department of Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada, HARRIS, Jeff W., School of Geographical and Earth Sciences, University of Glasgow, Glasgow, G12 8QQ, United Kingdom, STERN, Richard A., Canadian Centre for Isotopic Microanalysis, University of Alberta, 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB T6G 2E3, Canada and HAGGERTY, Stephen E., Department of Earth and Environment, Florida International University, Miami, FL 33265
10:40 AM
CONSTRAINTS ON DIAMOND DEPTHS OF ORIGIN FROM Fe-Mg PARTITIONING
CHEN, Sha1, CZAS, Janina2, NI, Peng1, SHIREY, Steven B.3 and STIXRUDE, Lars4, (1)University of California, Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA 90095, (2)Carnegie Science, Earth & Planets Laboratory, Washington, D.C., WA 20015, (3)Earth and Planets Lab, Carnegie Institution for Science, 5241 Broad Branch Rd NW, Washington, DC 20015-1305, (4)Department of Earth, Planetary, and Space Sciences, University of California Los Angeles, Los Angeles, CA 90095
10:55 AM
THE GROWTH HISTORY OF A SUBLITHOSPHERIC DIAMOND REVEALED BY 3D GROWTH ZONATION, INCLUSION MINERALOGY AND GEOBAROMETRY
SMITH, Evan M., Gemological Institute of America, 50 W 47th Street, New York, NY 10036 and JONES, Daniel, Gemological Institute of America (GIA), 333 Meadowlands Pkwy, Suite 105, Secaucus, NJ 07094
11:10 AM
APPLICATIONS OF MACHINE LEARNING TO CHARACTERIZING COLOR-CAUSING DEFECTS IN NATURAL DIAMONDS
HARDMAN, Matthew, LAI, Mei Yan, BREEDING, Christopher M. and EATON-MAGAÑA, Sally, Gemological Institute of America, 5355 Armada Dr, Carlsbad, CA 92008
11:25 AM
LOW-TEMPERATURE ANNEALING AND KINETICS OF RADIATION STAINS IN NATURAL DIAMOND
EATON-MAGANA, Sally, Gemological Institute of America (GIA), 5345 Armada Dr, Carlsbad, CA 92008
11:40 AM
SPECTROSCOPIC FEATURES OF OUTER GREEN FLUORESCENCE RIMS IN PINK ARGYLE ROUGH DIAMONDS
LINZMEYER, Taryn1, EATON-MAGAÑA, Sally1, BREEDING, Christopher M.1, JONES, Daniel2 and MYAGKAYA, Elina3, (1)Gemological Institute of America, 5355 Armada Dr, Carlsbad, CA 92008, (2)Gemological Institute of America (GIA), 333 Meadowlands Pkwy, Suite 105, Secaucus, NJ 07094, (3)Gemological Institute of America, 50 West 47th Street, 8th Floor, New York, NY 10036
 
11:55 AM
Concluding Remarks
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