Facet Nation: A Gemmology Podcast

Facet Nation
  • 5.0 (2)
  • NATURAL SCIENCES

Facet Nation is a new kind of gemmology podcast. Rigorous enough for serious students, but fascinating and funny enough for anyone craving an inside look at gemstones, jewellery and the shadowy world surrounding them. Part revision aide, part storytime, Lucinda and Simon are your qualified guides to the world’s most ancient treasures.

  1. 4D AGO

    28. Colour: Pleochroism and Colour Filter Gem testing

    Send a text In this episode, Lucinda and Simon explore the fascinating world of gemmology instruments, focusing on colour filters like the Chelsea colour filter and pleochroism testing methods. Learn how these tools aid in gemstone identification and enhance gem cutting techniques. Educational  key topics Colour filters in gemmology Chelsea colour filter purpose and use Pleochroism and its significance in gemstone identification Testing for pleochroism with London Dichroscope and calcite dichroscope Importance of light source and gemstone orientation in testing Natural vs synthetic gemstone identification techniques  key frameworks Colour absorption principles Pleochroism and optical anisotropy Gemstone orientation and cutting strategies Titles Mastering Gemstone Identification: The Power of Colour Filters and Pleochroism Tests Unlocking Gem Secrets: Chelsea Filter and Pleochroism in Gemmology  sound bites "Record your observation by stating the colour scene." "Always think about why you're looking at the stone." "Share your pleochroic observations with others." Chapters 00:00 Introduction to Colour Filters in Gemmology 01:55 Understanding Pleochroism and Selective Absorption 05:27 Testing for Pleochroism with the London Dichroscope 10:34 Comparing the London Dichroscope and Calcite Dichroscope 15:36 Documenting Pleochroism Observations 17:35 Understanding Gemstone Colours and Pleochroism 20:04 The Chelsea Colour Filter: A Gemstone Testing Tool 26:23 Practical Applications of the Chelsea Colour Filter 28:50 Identifying Gemstones: Colour Responses and Observations resources Gem-A - https://www.gem-a.com Pleochroism in Gemstones (Book) - https://www.amazon.com/pleochroism-gemstones Instagram - https://www.instagram.com/facetnationgemmology Email - facetnation@facetnation.co.uk gemmology, colour filters, Chelsea filter, pleochroism, gemstone identification, gem testing, gem cutting, gemmology tools Support the show

    32 min

  2. MAR 9

    27. Jadeite: A Cultural Icon

    Send a text This episode explores the fascinating world of jadeite, covering its geology, colours, treatments, cultural significance, and the latest gemological insights. Hosted by gemmologists Lucinda and Simon, it offers a deep dive into one of the most revered gemstones across cultures.  key topics Jadeite vs Nephrite Colours and Varieties of Jadeite Treatments and Impostors in Jadeite Cultural Significance of Jade in China and Central America Geology and Formation of Jadeite Titles Jadeite Unveiled: 10 Facts Every Gemologist Should Know The Hidden World of Jadeite: From Burma to Central America  sound bites "Imperial Jade is the poster child for jadeite" "Mining jadeite involves cutting into massive boulders" "Testing includes SG, hardness, and visual clues" Chapters 00:00 Introduction to Jadeite 02:54 The Complexity of Jadeite 05:43 Understanding Jadeite's Properties 08:39 The Formation and Sources of Jadeite 11:20 Cultural Significance and Jewellery of Jadeite 14:08 Impostors and Imitations of Jadeite 18:40 Testing and Identifying Jadeite 26:46 Exploring Literature and Its Influence 28:01 Understanding Specific Gravity in Gemmology 29:59 Testing Gem Hardness and Its Implications 31:30 Refractive Index: A Key to Gem Identification 33:28 The Complex World of Jade Treatments 39:14 Cultural Significance of Jade in China 51:31 Jade's Historical Importance in Central America Resources Gem-A (Gemological Association of Great Britain) - https://gem-a.com Real Jade Co. - https://realjade.com Instagram - https://instagram.com/facetnationgemmology jadeite, gemmology, gemstones, jade, mineralogy, treatments, cultural significance, Guatemala jade, gem identification Support the show

    56 min

  3. MAR 2

    26. Interview: Andrew Geoghegan - Jewellery Design, Branding and Keeping it Real

    Send a text Join us as we explore the journey of jewellery designer Andrew Geoghegan, from childhood fascination with treasure to creating innovative collections inspired by history and nature. Discover insights on craftsmanship, branding, and staying authentic in a digital world.  key topics Andy Geoghegan's early fascination with treasure and jewellery The journey from university to professional jewellery design The importance of authenticity and personal style in branding Inspiration from history, nature, and personal experiences Challenges and insights in modern jewellery marketing  guest name Andrew Geoghegan Titles From Childhood Mischief to Jewellery Mastery: Andrew Geoghegan's Creative Journey Unlocking the Secrets of Gem Setting and Jewellery Design  sound bites "That moment sparked my love for jewellery" "The use of colour in jewellery is about expression" "Finding that relic was like discovering treasure" Chapters 00:00 Introduction to Andrew Geoghegan 01:20 The Journey Begins: Early Memories of Jewellery 02:57 From Art College to Jewellery Design 09:10 Building the Brand: The Early Days 11:32 Navigating Challenges and Perseverance 16:22 The Digital Age: Marketing Jewellery Today 23:56 Design Inspirations and Client Connections 30:08 The Art of Craftsmanship in Jewellery 34:06 Innovative Use of Colour in Jewellery Design 36:59 Embracing Individuality in Gemstone Choices 37:21 Inspiration from Nature and History 42:33 The Thrill of Treasure Hunting 48:44 Launching the Treowth Collection  resources Susannah King on Instagram - https://www.instagram.com/susannahkinglondon/ The Detectorists (TV Series) - https://www.netflix.com/title/80064446 Gemology Resources - https://www.gia.edu/ Jewelry Design Books - https://www.amazon.com/s?k=jewelry+design  guest links Instagram - https://www.instagram.com/andrewgeoghegan/ https://andrewgeoghegan.com/ jewellery design, gemmology, jewellery collection, craftsmanship, branding, authenticity, goldsmithing, gemstone, jewellery inspiration, digital marketing Support the show

    53 min

  4. FEB 23

    25. Interview: Wim Vertriest - GIA Field Gemmology, Gem Identification and Mozambique Rubies

    Send a text  Join us as Wim Vertriest, head of field gemmology at GIA, shares his journey from geology to gemmology, insights into Mozambique rubies, and the fascinating science behind gemstone origin determination. Discover how field gemmology connects geology, anthropology, and the gemstone trade to deepen your understanding of these precious stones.  Key topics Wim Vertriest's journey from geology to gemmology Insights into Mozambique ruby deposits and mining practices The role of field gemmology in understanding gemstone origins Scientific techniques for gemstone identification and origin determination The impact of Mozambique rubies on the global gemstone market  Guest name Wim Vertriest Titles The Science and Secrets of Mozambique Rubies: An Interview with Wim Vertriest From Geology to Gemmology: Wim Vertriest's Journey at GIA  sound bites "Gemmology is about understanding the whole ecosystem." "Heat treatment leaves subtle but detectable clues." "My favourite gemstone is the Cat's Eye Chrysoberyl." Chapters 00:00 Introduction to Gemmology and Guest Background 02:57 Wim's Journey into Gemmology 05:19 The Role of Field Gemmology 07:55 Understanding Gemstone Origins 10:14 Geological Mysteries of Rubies 12:39 The Impact of Mining on Gemstones 15:12 The Evolution of Consumer Awareness 17:43 Building a Reliable Gemstone Collection 20:30 The Multidisciplinary Nature of Field Gemmology 23:04 Exploring the Origins of Sapphires 24:09 Field Gemmology: Balancing Lab Work and Expeditions 26:03 Research-Driven Gemmology: Filling Knowledge Gaps 27:39 Emerging Trends in Gemstone Popularity 29:24 The Challenges of Diamond Origin Determination 30:37 Identifying Gemstones: The Art of Exclusion 33:23 Declassifying Misidentified Stones 39:55 The Canary in the Coal Mine: Ruby Heating Experiments 44:18 The Chemistry of Gemstones 46:47 Advanced Techniques in Gemmology 48:08 The Rise of Mozambique Rubies 52:42 The Evolution of Ruby Mining 58:42 Changing Perceptions of Rubies 01:01:11 The Future of Gemmology  resources GIA Official Website - https://www.gia.edu Gems and Gemology Journal - https://www.gia.edu/gems-gemology Mozambique Ruby Mining Insights (Report) - https://www.gia.edu/mozambique-ruby-report Wim Vertriest's Profile on LinkedIn - https://www.linkedin.com/in/wimvertriest Guest links LinkedIn - https://www.linkedin.com/in/wimvertriest GIA Profile - https://www.gia.edu/wim-vertriest gemmology, gemstones, Mozambique rubies, gemstone origin, field gemmology, GIA, gem research, gemstone mining, gemstone identification, gem science Support the show

    1h 3m

  5. FEB 16

    24. Colour: The Spectroscope and Selective Absorption in Gems

    Send a text In this episode of Facet Nation, Simon and Lucinda delve into the fascinating world of gemmology, focusing on the spectroscope and its critical role in identifying gemstones. They discuss the different types of spectroscopes, techniques for using them, and the importance of diagnostic spectra in gem identification. The conversation is rich with insights into the nuances of color absorption and the practical applications of these tools in the field. The hosts also share personal anecdotes and tips for gem enthusiasts, making the episode both informative and engaging. Takeaways The spectroscope is essential for identifying gemstones. There are two main types of handheld spectroscopes: prism and diffraction grating. Using a spectroscope can help you understand how gemstones absorb light. Techniques for using a spectroscope include transmitted and reflected light methods. Diagnostic spectra are crucial for identifying specific gemstones. Understanding colour absorption helps in gem identification. The spectroscope can be used on both rough and polished stones. Learning the diagnostic spectra of gemstones is beneficial for gemmologists. The conversation emphasises the importance of practical experience in gemmology. Future episodes will cover more advanced topics in gemmology.  "We're going to talk about the spectroscope." "It's a really good one." "You can't see it, but it's there." Chapters 00:00 Introduction to Gemmology and Recent Finds 02:06 Exploring the Spectroscope: A Gemmologist's Tool 11:16 Understanding Dispersion and Diffraction in Gemstones 18:39 Techniques for Using the Spectroscope 22:31 Diagnostic Spectra and Their Importance 26:53 The Art of Writing and Dashes 29:41 Understanding Spectrums: Zircon and Ruby 32:18 Emerald and Alexandrite Spectrums 35:03 Synthetic and Natural Sapphires 37:28 Exploring Iron Spectrums in Gemstones 40:03 The Spectrum of Garnets and Jadeite 42:42 Cobalt Spectrums: Spinel and Glass 45:31 Rare Earth Elements and Red Glass 47:59 Diamonds and Their Unique Spectra gemmology, spectroscope, gemstones, diagnostic spectra, colour absorption, gem identification, gemmology techniques, gem enthusiasts, gem collectors, gemstone analysis, gemology Support the show

    53 min

  6. FEB 9

    23. Colour: An introduction

    Send a text In this episode of the Facet nation gemmology podcast, Lucinda and Simon explore the intricate world of colour in gemstones. They discuss the significance of colour in determining the value of gemstones, the science of light and how it interacts with materials to create colour, and the chemical elements responsible for these hues. The conversation also covers the colour wheel and its relevance to gemstones, the methods of analysing gemstones through spectroscopy, and the perception of colour. The episode concludes with a teaser for future discussions on more complex topics related to colour in gemmology. Takeaways Colour is the most important aspect of coloured gemstones. The value of gemstones is influenced by colour, history, and trends. Light is essential for colour perception in gemstones. Selective absorption determines the colour we see in gemstones. Eight chemical elements are responsible for colour in gemstones. The colour wheel helps understand colour relationships in gemstones. Not all light sources are suitable for gemstone analysis. Spectroscopy is a key tool in analysing gemstone colours. Understanding the science of colour enhances appreciation for gemstones. Future episodes will explore more complex topics in gemmology. Titles Exploring the Colour Spectrum of Gemstones The Science Behind Gemstone Colours Sound bites "Everything comes back to light." "Not all white light is created equal." "If there is no light, does colour exist?" Chapters 00:00 Introduction to Colour in Gemmology 01:50 The Importance of Colour in Gemstones 04:34 Understanding Light and Colour 09:11 Chemical Elements and Colour 12:29 The Colour Wheel and Its Application 16:15 Spectroscopy and Light Sources 21:16 Conclusion and Future Topics gemstones, colour, light, spectroscopy, chemical elements, colour wheel, gemmology, ruby, sapphire, emerald Support the show

    25 min

  7. FEB 2

    22. Interview: Justin Prim - gemcutter, author, teacher and historian

    Send a text In this episode of Facet Nation, hosts Lucinda and Simon welcome gem cutter Justin K Prim, who shares his fascinating journey from music to gemmology. Justin discusses his experiences in the gem trade, the art and science of gem cutting, and the importance of community in the field. He also delves into his favorite gemstones, the challenges of the trade, and his exciting new projects, including a gem cutting school and a museum showcasing his extensive collection of machines and books. Find out more: https://www.magusgems.com https://www.facetingapprentice.com Takeaways Justin transitioned from a career in music to gem cutting. He discovered the gem trade through a local gem show. Lapidary clubs play a crucial role in learning gem cutting. Emeralds are Justin's favourite gemstones to cut. The gem cutting process requires patience and attention to detail. Community support is vital for aspiring gem cutters. Justin emphasises the importance of creativity in gem cutting. He is excited about his new gem cutting school and museum. The gem trade is evolving, with a growing appreciation for well-cut stones. Justin's books aim to educate and inspire future gem cutters. Titles From Music to Gemmology: Justin K Prim's Journey The Art of Gem Cutting with Justin K Prim Sound bites "I want to keep cutting." "I love cutting emeralds." "It's a mystery." Chapters 00:00 Introduction to Gemmology and Guest Introduction 01:13 Justin's Journey into Gem Cutting 05:19 Discovering the Gem Trade 09:06 The Evolution of Gem Cutting Community 11:45 Getting Started in Lapidary 14:47 The Art of Gem Cutting 16:18 Moving to Bangkok for Gemmology School 20:20 Building a Career in Gem Cutting 23:07 Life in France and the Gem Business 25:47 The Process of Cutting a Gemstone 27:01 The Art of Preforming and Cutting Gems 29:54 Polishing and Final Touches in Gem Cutting 31:54 Exploring Different Faceting Techniques 33:43 The Journey of Learning and Experimentation 36:30 Building a Gem Cutting School and Museum 38:15 The Passion Behind Gem Cutting and Teaching 42:29 The Evolution of Gem Cutting Techniques 47:32 Historical Insights into Gem Cutting 52:36 The Importance of Quality in Gemstones 54:57 Understanding Coloured Stones vs. Diamonds 56:28 The Journey of a Gemstone Buyer 58:53 Emotional Connections in Jewellery Making 01:04:48 The Art of Cutting Gemstones 01:06:23 Future Plans and Collaborations gemmology, gem cutting, gemstones, lapidary, gem trade, gem cutter, gem education, gem collection, gem stories, gem enthusiasts, books, gem history, museum Support the show

    1h 7m

  8. JAN 26

    21. Interview: Jeff Hapeman, Earth's Treasury. Montana Sapphires and more

    Send a text In this episode of Facet Nation, hosts Lucinda and Simon interview Jeff Hapeman, owner of Earth's Treasury, who shares his unique journey from academia to the gem industry. Jeff discusses the fascinating world of Montana sapphires, the challenges and opportunities within the gem market, and the importance of ethical sourcing and cutting techniques. The conversation highlights the growing popularity of coloured stones and the evolving consumer preferences in jewellery design. In this engaging conversation, Jeff Hapeman discusses the intricacies of gem cutting, the inspirations behind his jewellery designs, and the fascinating world of photomicrography. He shares insights into the judging process for the Gem-A Photographer of the Year and reflects on his experiences with Montana sapphires, emphasising the beauty and uniqueness of gemstones. Takeaways Jeff transitioned from academia to gemmology after realising academia wasn't for him. Earth's Treasury focuses on American gemstones, particularly Montana sapphires. Montana sapphires offer a unique variety of colours and qualities. The gem industry faces challenges with sourcing and environmental regulations. Jeff emphasises the importance of ethical sourcing in the gem market. The rise of coloured stones reflects changing consumer preferences. Gem cutting techniques can significantly affect the appearance of stones. There is a growing awareness of the importance of quality cutting in coloured stones. Jeff believes that coloured stones are becoming more popular among younger generations. The future of gemmuology will likely see continued growth in the colored stone market. The pavilion angle needs to be steeper for optimal performance. Jewellery is bespoke and designed specifically for each stone. Sphene is a captivating gem with unique dispersion. The Garnet Supernova necklace was inspired by a collector's love for Art Deco. Colour is a key element in trendy jewellery designs. Photomicrography reveals the intricate beauty of gemstones. Judging photography involves assessing technical skill and aesthetic appeal. Montana sapphires are mined in limited quantities, often yielding smaller stones. Patience and persistence are essential in gemstone photography. The journey of a gemstone from rough to finished piece is a labor of love. Titles The Art of Gem Cutting: Insights from Jeff Hapeman Design Inspirations: Crafting Unique Jewellery Sound bites "I try to minimise the waste." "They look awesome." "I love all gems equally." Chapters 00:00 Introduction to Gemmology and Guest Introduction 03:24 Jeff Hapeman's Unique Journey into Gemmology 08:41 The Birth of Earth's Treasury and Business Evolution 12:14 Montana Sapphires: A Gemstone Revolution 19:55 The Appeal of Coloured Stones in Modern Jewellery 23:29 The Future of Diamonds and Coloured Gemstones 27:41 Exploring Unique Garnets and Tourmalines 29:02 Innovative Cuts for Montana Sapphires 31:35 The Art of Precision Cutting 33:30 Designing Jewellery with Timeless Inspiration 37:50 Creating Signature Jewellery Designs 42:38 The World of Photomicrography 47:41 Judging the GemA Photographer of the Year 49:26 The Art of Inclusion Photography 52:06 Patience in Photography and Nature 53:24 Experiences in the UK and Gemmology 56:14 Self-Publishing and the Journey of a Book 58:11 The Reality of Sapphire Mining gemmology, Montana sapphires, Jeff Hapeman, Earth's Treasury, gem cutting, coloured stones, jewellery design, gem indust Support the show

    1h 2m
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Ratings & Reviews

5
out of 5
2 Ratings

About

Facet Nation is a new kind of gemmology podcast. Rigorous enough for serious students, but fascinating and funny enough for anyone craving an inside look at gemstones, jewellery and the shadowy world surrounding them. Part revision aide, part storytime, Lucinda and Simon are your qualified guides to the world’s most ancient treasures.

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