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Explore the fascinating world of physical optics in gemstones, focusing on iridescence, thin film interference, and the science behind colour phenomena like labradorescence and opalescence. Perfect for budding gemologists and enthusiasts alike.

key topics
Physical optics in gemstones
Iridescence and wave interference
Thin film interference in gem materials

Unveiling Gemstone Colours: The Science of Iridescence and More
The Hidden Physics of Gemstone Beauty: A Deep Dive


sound bites
"Iridescence is caused by wave interference."
"Labradorescence is due to the chemistry of feldspar."
"Pearlescence results from stacked layers of aragonite."


Chapters
00:00 Introduction to Physical Optics
02:09 Understanding Iridescence
11:00 Exploring Twin Planes and Their Effects
14:11 The Fascination of Labradorescence and Adularescence
20:03 The Nature of Light and Colour
21:06 Exploring Rainbow Moonstone
22:28 The Allure of Pearls
25:06 Understanding Iridescence in Pearls
28:27 The Mystique of Opals
36:52 Reflections on Quality and Value in Gemstones

resources
Facet Nation Podcast - https://youtube.com/@facetnationuk


guest links
Instagram - https://instagram.com/facetnationgemmology
TikTok - https://tiktok.com/@facet.nation.pod
Email - mailto:facetnation@facetnation.co.uk

gemmology, physical optics, iridescence, labradorescence, opalescence, gemstone science, thin film interference, gemstone phenomena

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