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Play-of-Color Opal from Wegel Tena, Wollo Province, Ethiopia Describes a major new source of high-quality opal with a mostly white bodycolor
Gems and gemology , 2010
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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On the Origin of Digit Patterns in Gem Opal
Gems and gemology , 2013
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Gemological Properties of Near-Colorless Synthetic Diamonds
Gems and gemology , 1997
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Russian Synthetic Pink Quartz
Gems and gemology , 1998
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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A Gemological Study of a Collection of Chameleon Diamonds - Examines a collection of 39 chameleon diamonds and summarizes gemological and spectroscopic means for their identification
Gems and gemology , 2005
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Gemological Investigation of a New Type of Russian Hydrothermal Synthetic Emerald
Gems and gemology , 1996
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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FEATURE ARTICLES - The Identification of Zachery-Treated Turquoise
Gems and gemology , 1999
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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FEATURE ARTICLES - The Separation of Natural from Synthetic Colorless Sapphire
Gems and gemology , 1999
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Separating Natural and Synthetic Rubies on the Basis of Trace-Element Chemistry
Gems and gemology , 1998
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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RAPID COMMUNICATIONS Hibonite: A New Gem Mineral
Gems and gemology , 2010
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Characterization of Emeralds from a Historical Deposit: Byrud (Eidsvoll), Norway - Presents the distinguishing gemological, spectroscopic, and chemical characteristics of emeralds from this classic Norwegian locality
Gems and gemology , 2008
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES & NEW TECHNIQUES - Infrared Spectroscopy of Natural vs. Synthetic Amethyst: An Update - High-resolution FIR analysis can provide a conclusive determination of the natural or synthetic origin of amethyst
Gems and gemology , 2011
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES & NEW TECHNIQUES - UV-Vis-NIR Reflectance Spectroscopy of Natural-Color Saltwater Cultured Pearls from Pinctada Margaritifera - Identifies the absorption features associated with the various bodycolors of these cultured pearls
Gems and gemology , 2011
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Identification of the Endangered Pink-to-Red Stylaster Corals By Raman Spectroscopy
Gems and gemology , 2009
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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X-ray Computed Microtomography Applied to Pearls: Methodology, Advantages, and Limitations
Gems and gemology , 2010
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft