Search Results - "Michael S. Krzemnicki"

Dehydration of Diaspore and Goethite during Low-Temperature Heating as Criterion to Separate Unheated from Heated Rubies and Sapphires by Michael S. Krzemnicki, Pierre Lefèvre, Wei Zhou, Judith Braun, Georg Spiekermann

“…Gem-quality rubies and sapphires are often commercially heat treated at about 800 °C or higher to enhance their color and clarity, and hence quality. For this…”
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DNA fingerprinting: an effective tool for taxonomic identification of precious corals in jewelry by Lendvay, Bertalan, Cartier, Laurent E., Gysi, Mario, Meyer, Joana B., Krzemnicki, Michael S., Kratzer, Adelgunde, Morf, Nadja V.

“…Precious coral species have been used to produce jewelry and ornaments since antiquity. Due to the high value and demand for corals, some coral beds have been…”
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Coral-ID: A forensically validated genetic test to identify precious coral material and its application to objects seized from illegal traffic by Lendvay, Bertalan, Cartier, Laurent E., Costantini, Federica, Iwasaki, Nozomu, Everett, Meredith V., Krzemnicki, Michael S., Kratzer, Adelgunde, Morf, Nadja V.

“…The production and trade of objects manufactured from the skeletal axis of coralid precious corals is a historically, culturally and economically important…”
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DNA fingerprinting of pearls to determine their origins by Meyer, Joana B, Cartier, Laurent E, Pinto-Figueroa, Eric A, Krzemnicki, Michael S, Hänni, Henry A, McDonald, Bruce A

“…We report the first successful extraction of oyster DNA from a pearl and use it to identify the source oyster species for the three major pearl-producing…”
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Raman spectroscopic investigation of zircon in gem‐quality sapphire: Application in origin determination by Xu, Wenxing, Krzemnicki, Michael S.

“…In this study, zircon inclusions in selected 115 unheated sapphires originating from metamorphic deposits were studied by confocal micro‐Raman spectroscopy. By…”
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U–Pb Dating of Zircon and Zirconolite Inclusions in Marble-Hosted Gem-Quality Ruby and Spinel from Mogok, Myanmar by Myint Myat Phyo, Hao A.O. Wang, Marcel Guillong, Alfons Berger, Leander Franz, Walter A. Balmer, Michael S. Krzemnicki

“…The Mogok area in Myanmar (Burma) is known since historic times as a source for some of the finest rubies and spinels in the world. In this study, we focus on…”
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Petrology, geothermobarometry and geochemistry of granulite facies wall rocks and hosting gneiss of gemstone deposits from the Mogok area (Myanmar) by Phyo, Myint Myat, Franz, Leander, Romer, Rolf L., de Capitani, Christian, Balmer, Walter A., Krzemnicki, Michael S.

“…•PT-estimates were accomplished for the formation of marble-hosted ruby-spinel-deposits in the Mogok area of the Mogok Metamorphic Belt (MMB) of Myanmar…”
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