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

Session No. 64
Sunday, 1 November 2015: 1:30 PM-5:30 PM
Room 342 (Baltimore Convention Center)

T131. Gemological Research in the 21st Century: Exploration, Geology, and Characterization of Diamonds and other Gem Minerals

Gemological Institute of America
James E. Shigley, Dona Mary Dirlam, Wuyi Wang, Lee A. Groat, Thomas Stachel, Barbara L. Dutrow, Howard Coopersmith, Nancy J. McMillan and William B. Simmons, Session Chairs
Paper #
Start Time
1:30 PM
GEM MATERIALS: RESEARCH INTO THEIR ROLE IN THE EARTH SYSTEM
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
64-2
1:50 PM
Withdrawn
2:05 PM
TYPE IB DIAMOND FORMATION RELATED TO GONDWANA ASSEMBLY: EVIDENCE FROM RE-OS ISOTOPIC COMPOSITIONS OF WEST AFRICAN SULPHIDE INCLUSIONS
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
2:20 PM
NEOPROTEROZIC RE-OS AGE OF A SULFIDE INCLUSION IN A SUPERDEEP DIAMOND: IMPLICATIONS FOR MANTLE CONVECTION BENEATH JUINA, BRAZIL
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
2:35 PM
DIFFERENTIAL HARDNESS OF DIAMOND DETERMINES THE FORM OF MOGUL CUT STONES: THE CASE OF THE KOH-I-NOOR
HART, Alan, The Natural History Museum, Department of Earth Sciences, Cromwell Road, London, SW7 5BD, United Kingdom, A.Hart@nhm.ac.uk
2:50 PM
LUMINESCENCE INVESTIGATIONS OF NATURAL COLOR-CHANGING DIAMONDS
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
 
3:05 PM
Break
3:20 PM
THE HAMLIN NECKLACE AND MOUNT MICA TOURMALINES
ALONSO-PEREZ, Raquel, Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, ralonso@fas.harvard.edu
3:40 PM
GLASSY MELT INCLUSIONS IN SAPPHIRES FROM THE ROCK CREEK AND MISSOURI RIVER DEPOSITS IN MONTANA, USA
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
3:55 PM
PRODUCTION OF SPURIOUS PARTIALLY HEALED FRACTURES IN SYNTHETIC CORUNDUM THROUGH HIGH-TEMPERATURE FUSION
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
4:10 PM
ORIGIN AND SPECIES DETERMINATION OF ORGANIC GEMS: DNA FINGERPRINTING AS A NOVEL METHOD IN GEMOLOGY
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, Z├╝rcherstrasse 111, Birmensdorf, 8903, Switzerland and KRZEMNICKI, MIchael S., Swiss Gemmological Institute SSEF, Aeschengraben 26, Basel, 4051, Switzerland, laurent.cartier@ssef.ch
4:25 PM
THE CAUSE OF IRIDESCENCE IN NATURAL QUARTZ CRYSTALS FROM THE JALGAON DISTRICT, INDIA
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
4:40 PM
FLUID EVOLUTION AT THE NORTH AMERICAN EMERALD MINE, HIDDENITE, NORTH CAROLINA
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
4:55 PM
GEM POLLUCITE FROM MT. MICA PEGMATITE, OXFORD CO., MAINE
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
5:10 PM
THE GEM DEPOSITS OF HIDDENITE, NORTH CAROLINA: A UNIQUE OCCURRENCE OF HYDROTHERMAL EMERALD AND HIDDENITE
WISE, Michael A., Dept. of Mineral Sciences, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, wisem@si.edu
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