Последние добавленные видео:
aaron-palke
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3 years ago
673 3 years ago 50:09The Geology and Gemology of World Emerald Deposits - Aaron Palke
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1 year ago
7 1 year ago 1:24:35Mineral Talks LIVE - Episode 52 - Dr. Aaron Palke - Sr. Manager of Research; GIA, Carlsbad, CA, USA
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1 year ago
594 1 year ago 37:57Understanding Color Phenomena in Gem Corundum by Dr. Aaron Palke
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6 years ago
3070 6 years ago 21:20Aaron Palke: "Unraveling the Causes of Color in Blue Spinels”
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4 years ago
3294 4 years ago 58:21Untold Stories from GIA Field Gemology Expeditions (Part II) | GIA Knowledge Sessions Webinar Series
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4 months ago
254 4 months ago 49:49GIA Field Gemology at the One-Hundredth Expedition: A Look Back and to the Future
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1 year ago
87 1 year ago 38:47Crater of Diamonds State Park, with GIA's Aaron Palke, Ph.D.
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4 years ago
349 4 years ago 27:10Gemology: Time Capsules Connecting Us Through History
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4 months ago
26 4 months ago 57:31From Science to Social Media: How Trade Media Engages With & Covers the Jewelry Industry
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5 years ago
1209 5 years ago 7:49Understanding Coloured Gemstones - Sapphire and Ruby Geology
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2 years ago
242 2 years ago 1:02:09ICA Congress 2023 - Laboratory Panel
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8 months ago
21 8 months ago 30:14Identification of Turquoise in the Gemological Laboratory: Behind the Scenes with Turquoise at GIA
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4 years ago
250 4 years ago 27:10Gemology: Time Capsules Connecting Us Through History
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3 years ago
5170 3 years ago 59:51Minerals Discovered and Named at GIA | GIA Knowledge Sessions Webinar Series
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5 years ago
334 5 years ago 7:21Understanding Coloured Gemstones - Mineralogy of Ruby and Sapphire
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5 years ago
25 5 years ago 7:49Understanding Coloured Gemstones - Mineralogy of Ruby and Sapphire
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4 years ago
14524 4 years ago 59:02The Sapphires of Montana | GIA Knowledge Sessions Webinar Series
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5 years ago
162 5 years ago 7:21Understanding Coloured Gemstones - Sapphire and Ruby Geology
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4 years ago
47186 4 years ago 1:26:52A Comparison of Diamonds and Colored Stones | GIA Knowledge Sessions Webinar Series
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4 years ago
11020 4 years ago 1:08:31Red Gemstones: History, Lore and Gemology | GIA Knowledge Sessions Webinar Series