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FEATURE ARTICLES - GE POL Diamonds: Before and After - The first study of GE POL diamonds before and after HPHT processing reveals important clues to their identification
Gems and gemology , 2000
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES AND NEW TECHNIQUES - Clues to the Process Used by General Electric to Enhance the GE POL Diamonds
Gems and gemology , 1999
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES AND NEW TECHNIQUES - New Chromium- and Vanadium-Bearing Garnets from Tranoroa, Madagascar - A study of pyrope-spessartine garnets with unusual color behavior from Tranoroa, southern Madagascar
Gems and gemology , 2002
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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FEATURE ARTICLES - Sapphires from Antsiranana Province, Northern Madagascar - Learn the distinctive features of blue-green-yellow sapphires from the important basaltic deposits near Ambondromifehy
Gems and gemology , 2000
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES AND NEW TECHNIQUES - Purple to Purplish Red Chromium-Bearing Taaffeites
Gems and gemology , 2000
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES AND NEW TECHNIQUES - Garnets from Madagascar with a Color Change of Blue-Green to Purple
Gems and gemology , 1999
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES AND NEW TECHNIQUES - Serendibite from Sri Lanka - A characterization of this rare gem material from Sri Lanka
Gems and gemology , 2002
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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ABSTRACTS OF FEATURE PRESENTATIONS - BY SESSION - GEM IDENTIFICATION - Distinguishing Natural from Synthetic Emeralds
Gems and gemology , 1999
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES AND NEW TECHNIQUES - The First Transparent Faceted Grandidierite, from Sri Lanka - Presents the gemological, chemical, and spectroscopic properties of the first known transparent faceted grandidierite
Gems and gemology , 2003
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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NOTES AND NEW TECHNIQUES - Pink to Pinkish Orange Malaya Garnets from Beklly, Madagascar - Malaya garnets from southern Madagascar, only the second commercial source of this material, are described and characterized
Gems and gemology , 2001
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Synthetic Emeralds Grown by Richard Nacken in the Mid-1920s: Properties, Growth Technique, and Historical Account
Gems and gemology , 2017
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Trapiche Rubies
Gems and gemology , 1996
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Russian Flux-Grown Synthetic Alexandrite
Gems and gemology , 1996
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Growth Method and Growth-Related Properties 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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Characterization of Chinese Hydrothermal Synthetic Emerald
Gems and gemology , 1997
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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FEATURE ARTICLES - Some Diagnostic Features of Russian Hydrothermal Synthetic Rubies and Sapphires
Gems and gemology , 1999
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft
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Rubies and Sapphires from Winza, Central Tanzania - Describes the mining and geology of this new source of untreated rubies, and characterizes the gem corundum produced there, which arrived on the market in early 2008
Gems and gemology , 2008
Enthalten in: Gems and gemology
OLC Kunst und Kunstwissenschaft