Facet Nation: A Gemmology Podcast

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In part two, we explore the Ugrandite series of garnets, including their chemistry, history, and the stories behind famous varieties like Tsavorite and Demantoid. Join us for a deep dive into gemstone lore, geology, and the vibrant stories that make these stones so captivating.

 key  topics
The isomorphous series of garnets and their chemical formulas
The story of tsavorite's discovery and its geological background
The history and lore of demantoid garnet and its connection to Faberge
The marketing and storytelling aspect of gemstone branding
Different varieties of garnets including grossular, andradite, and uvarovite
The significance of inclusions and their identification in garnets
The story of Campbell Bridges and the discovery of tsavorite in Africa
The cultural and historical significance of garnets in jewelry


 sound bites
"Garnets are part of two isomorphous series."
"Tsavorite was discovered in the 1960s in Zimbabwe."
"Uvarovite is a tiny, beautiful green garnet."


Chapters
00:00 Introduction to Garnets and Episode Overview
01:57 The Isomorphous Series of Garnets Explained
07:56 Discovery and Geology of Tsavorite in Africa
14:56 The Story of Demantoid Garnet and Faberge
28:02 Varieties of Garnets: Grossular, Tsavorite, and More
40:05 The Lore, Inclusions, and Market of Garnets
44:01 The Tragic Tale of Campbell Bridges and Tsavorite

garnets, gemstone lore, tsavorite, demantoid, geology, jewellery, gemstone stories, mineralogy, gemmology, gemology, gems, Tiffany, Campbell Bridges, science

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Arya Akhavan returns! To reveal the secrets he couldn't disclose last time.

Arya has been growing sapphires! And not just any sapphires, every colour of sapphire you can imagine.

A gemologist and scientist, Arya shares groundbreaking insights into synthetic gemstone production, including sapphire growth, colour manipulation, and future innovations. Discover how science and passion are transforming the gem industry and what it means for collectors, faceters and jewellers alike.

Get involved by joining 'The Gemstone Lab' kickstarter here:

https://www.kickstarter.com/projects/canadacrystallabs/the-gemstone-lab-growing-never-before-seen-lab-sapphires

Groundbreaking sapphire growth techniques
Chemical processes in gemstone creation
The role of computer modeling in gemmology
Market implications of synthetic versus natural gems
Innovations in gemstone colour and treatments
Challenges in sourcing synthetic materials
Future projects in gemstone research
The impact of technology on gem cutting and design


 sound bites
"We want to do this scientifically, rigorously."
"Some synthetics are more rare than natural gems."
"Market perceptions have diverged completely."


Chapters
00:00 Introduction to Arya Akhavan and his work
02:54 Chemical processes in sapphire creation
06:18 Modeling and reverse engineering natural sapphires
08:34 Market trends and consumer preferences for synthetics
12:20 Industrial applications of synthetic gemstones
17:46 Market perception and the future of synthetic gems
22:37 Unique features of synthetic gemstones and market demand
28:43 Market diversification and consumer behavior
34:14 The evolution of synthetic gemstone marketing
43:56 Research and development in gemstone science
50:19 Current progress and future plans for gemstone synthesis
54:07 Closing thoughts and upcoming projects

synthetic gemstones, sapphire growth, gemmology, gemology, gemstone science, lab-grown gems, gemstone colour, gemstone innovation, gem industry, gemstone research, gem cutting, faceting, lapidary, kickstarter, coloured gemstones

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Hello and welcome back to Season 2 of Facet Nation: A Gemmology Podcast

In this episode, we explore the fascinating world of garnets, their varieties, history, and gemmological properties, revealing insights that will deepen your understanding of these captivating gemstones.

key  topics
Garnet varieties and their chemical compositions
Historical significance and trade of garnets
Gemmological properties and identification techniques
The spectrum of garnet colours and their causes
Hybrid garnet varieties and their market value
The importance of locality and deposit sources
Chemical formulas and systems of garnet classification
Inclusions and phenomena in garnet stones
The story behind the names and trade names of garnets


 sound bites
"Most garnets you see are that common brownish red."
"The Ugrandite series has calcium fixed and Y variable."
"Garnet spectrum goes thick, thin, thick, thin."


Chapters
00:00 Introduction to Garnets and Episode Overview
02:01 Common Misconceptions About Garnet Colours
04:08 The Diversity of Garnet Varieties and Their Names
05:32 Historical Trade and Significance of Garnets
07:00 Chemical Foundations of Garnet Classification
09:06 The Pyrope and Almandine Series Explained
11:02 Understanding Garnet Spectra and Colour Variations
12:52 The Rich History of Garnet Use in Jewellery
15:10 The Discovery and Naming of Rhodolite Garnet
17:00 Identifying and Differentiating Garnet Types
18:58 Inclusions, Phenomena, and Cutting Challenges
21:00 Localities and Market Trends for Garnets
23:00 The Fascinating World of Pyrope and Spessartine Garnets
25:08 The Unique Colours and Market Value of Spessartine
26:54 The Story of Malaya Garnet and Its Cultural Significance
29:02 Summary and Final Thoughts on Garnet Diversity

garnets, gemstone varieties, gemmology, almandine, pyrope, spessartine, Ugrandite, gem deposits, gemstone history, bohemian garnets, jewellery, gems, science, learning, education, study

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In this mini episode, Simon shares his summer adventures including gem mining in Oregon, visiting the Spectrum Sunstone Mine, and participating in gemmology events. Lucinda discusses her new gemmology brand, TikTok presence, and recent travels, highlighting the vibrant gem community and upcoming events.

Gem mining in Oregon
Spectrum Sunstone Mine visit
Gemmology events and community outreach
Lucinda's new gemmology brand and TikTok presence
Travel stories and gem history insights

 sound bites
"Met some amazing people in Oregon"
"Spotted a cougar in the wild"
"Check out my new gemmology brand, Cunning Folk"


Chapters
00:00 Introduction and episode overview
02:09 Memorable encounters and wildlife in Oregon
03:00 Exploring Oregon’s history and hot springs
06:58 Meet George, the versatile genius
08:02 Sunstone mining and collecting experiences
09:43 Gem community events and upcoming gatherings
14:34 Lucinda’s gemmology brand and social media launch
15:26 Lucinda’s trip to California and museum highlights
16:18 Lucinda’s UK adventures and historical sites
17:37 Season updates and upcoming episodes

gemmology, Oregon sunstone, gemstone mining, gem events, gem community, TikTok gemmology, Spectrum Sunstone Mine, gem education

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This episode explores the intricate process of diamond manufacturing, from designing and marking to shaping, faceting, and polishing. Hosted by gemmologists Simon and Lucinda, it offers detailed insights into cutting techniques, tools, and the science behind creating stunning gemstones.

End of Season One. THANK YOU FOR LISTENING.

We will be back, enjoy your summer

 key  topics
Diamond designing and marking
Dividing and cleaving methods
Shaping and faceting techniques
Polishing and final finishing
Tools and equipment used in gem cutting

Mastering Diamond Cutting: From Rough to Brilliant
The Art and Science of Gemstone Faceting


 sound bites
"Only diamond can cut a diamond"
"Lasers cut diamonds in twenty minutes"
"Start with the pavilion, then the crown"


Chapters
00:00 Introduction to Gemmology and Diamond Manufacturing
02:35 The Process of Cutting Diamonds
05:13 Dividing and Shaping Diamonds
08:03 Bruting and Faceting Diamonds
10:28 The Role of Technology in Diamond Cutting
13:26 Understanding Diamond Facets and Angles
15:46 Lapidary: The Art of Gemstone Cutting
18:48 Understanding Facet Diagrams
21:24 Dopping Techniques and Adhesives
24:49 The Faceting Process Begins
28:19 Grit Sequence and Polishing
32:31 Cutting the Crown Facets
36:58 Final Steps and Reflections
39:49 Looking Ahead: Future Plans and Wrap-Up

 resources
Gemology Project - Facet Diagrams - https://gemologyproject.com
Ultratech Gem Faceting Machines - https://ultratec.com
Andrew Ian Brown's Gemstone Design Books - https://www.amazon.com/s?k=Andrew+Ian+Brown+gemstone+design


Instagram - https://instagram.com/gemmology_si

diamond manufacturing, gemmology, faceting, cutting techniques, gemstone design, diamond polishing, gemmology course, gemstone tools, gemmology education

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In this episode, Lucinda and Simon explore the fascinating world of gemstone cutting and fashioning, covering essential terminology, techniques, and historical insights crucial for gemologists and enthusiasts alike.

 key  topics
Gemstone cutting terminology
Differences between lapidary and diamond manufacturing
Factors influencing gemstone cut decisions
Historical gem cutting techniques and innovations
Practical tips for evaluating rough stones

Gem Cutting Vocabulary
Diamond Manufacturing Process
Gemstone Cut Optimization

Review gemstone terminology regularly
Practice evaluating rough stones before cutting
Explore historical gem cutting techniques


Titles
Mastering Gemstone Cutting: Techniques, History, and Industry Insights
The Art and Science of Gem Cutting: A Comprehensive Guide


 sound bites
"The old mine cut has a rich history."
"Inlays and carvings add artistic value."
"A break in gem cutting is coming soon."


Chapters
00:00 Introduction to Gemmology and Cutting Gemstones
03:01 The Importance of Understanding Gemstone Cuts
05:43 Insights from Gem Cutting Experts
08:26 The Process of Fashioning Gemstones
11:09 Types of Gemstone Fashioning
13:58 Evaluating Rough Gemstones
16:37 Key Factors in Gemstone Cutting
19:13 Understanding Diamond Manufacture
21:58 Historical Perspectives on Gem Cutting
24:42 Modern Trends in Gem Cutting
27:24 Conclusion and Future of Gem Cutting
29:12 Understanding Diamond Cuts and Their History
32:29 The Anatomy of a Diamond: Key Features
34:51 Exploring Brilliant Cut Stones
36:42 Step Cuts vs. Brilliant Cuts: A Comparison
38:04 The Evolution of Rose Cuts and Mixed Cuts
40:32 Fantasy Cuts: The Art of Gemstone Cutting
41:35 Cabochons: The Gateway to Gem Cutting
44:25 Beads, Cameos, and Intaglios: Decorative Techniques
46:10 Carvings, Inlays, and Mosaics: Artistic Expressions

The V&A Museum Gem Collection - https://www.vam.ac.uk/collections/gems
UK Facet Cutters Guild - https://ukfcg.org/


 guest links
Instagram - https://instagram.com/facetnationgemmology
Email - mailto:[email protected]

gemmology, gemstone cutting, gem fashioning, gemmology exam, gem cutter, gemstone shapes, diamond manufacturing, gemmology history, gemstone grading, jewellery industry

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Join Lucinda, Simon, and Michelle Mai as they explore the art and science of precision gem cutting. Discover techniques, tools, design principles, and the inspiring journey of a master gem cutter in this engaging episode.

Precision gem cutting techniques
Tools and machinery for faceting
Design principles for gemstones
Materials used in gem cutting
The journey of a gem cutter


Guest  name
Michelle Mai


Titles
Mastering Precision Gem Cutting: Techniques and Inspiration
The Art and Science of Gem Faceting with Michelle Mai


 sound bites
"Equipment is a huge barrier to entry"
"Polishing quartz is challenging for me"
"Start with cabochons to learn the basics"


Chapters
00:00 Introduction to Precision Gem Cutting
08:09 Michelle's Journey into Gem Cutting
10:53 Understanding Gem Cutting Machinery
13:09 The Learning Curve in Gem Cutting
15:57 Design Principles in Gem Cutting
18:57 Challenges with Different Gem Materials
21:36 Creating Unique Gem Designs
24:36 The Role of Light in Gem Performance
27:00 Inspiration Behind Michelle's Designs
29:59 Favorite Designs and Techniques
32:31 Conclusion and Future Aspirations
35:41 Exploring Favourite Materials in Gem Cutting
37:53 Natural vs. Synthetic Gemstones: A Balanced Perspective
39:48 Navigating Risk and Responsibility in Gem Cutting
44:08 Advice for Aspiring Gem Cutters
51:04 Encouragement for Beginners in Lapidary Arts

 resources
Amateur Gemstone Faceting Volume One by Tom Herbst - https://www.amazon.com/dp/B07V4V7V4X
UK Facet Cutters Guild - https://www.ukfcg.org/
Gem Cut Studio - https://gemcutstudio.com/
Reddit r/shinypreciousgems - https://www.reddit.com/r/shinypreciousgems/


 guest links
Reddit - https://www.reddit.com/user/MichelleMai
Instagram - https://www.instagram.com/michellemai/

gem cutting, gemmology, precision faceting, gemstone design, gem tools, gemstone materials, gem industry, gem education

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In this episode of FacetNation, Simon and Lucinda delve into the fascinating world of tourmaline, particularly focusing on its significance in San Diego's gemstone history and the impact of the Dowager Empress Cixi on the pink tourmaline market. They explore the rise and fall of the tourmaline industry, the unique characteristics of the stone, and the methods used to identify it. The conversation is rich with historical anecdotes and insights into the gemmology field, making it an engaging listen for enthusiasts and newcomers alike. Also in this episode, Lucinda and Simon delve into the fascinating world of tourmaline, exploring its color variations, treatments, and the rise of Paraiba tourmaline as a highly sought-after gemstone. They discuss the geological origins of Paraiba tourmaline, its global appeal, and highlight famous examples, including the Ethereal Carolina Divine Paraiba. The episode concludes with a look at the stunning Liddicoat tourmaline slice, showcasing the beauty and complexity of this remarkable gemstone.


Tourmaline is a significant gemstone with various types.
San Diego has a rich history of gemstone mining.
The Dowager Empress Cixi played a crucial role in popularising pink tourmaline.
Zixi's love for pink tourmaline influenced the gemstone market.
The decline of the tourmaline market followed Cixi's death.
Testing tourmaline requires specific techniques due to its colour variations.
Tourmaline can be mistaken for other gemstones.
Historical context enhances the value of gemstones.
Gemstones often have fascinating stories behind them.
Understanding gemstone history can enrich appreciation for them. Some stones show two completely different colours.
Watermelon tourmalines need both pleochroic responses listed.
Tourmaline can be treated to enhance colour.
Paraiba tourmaline is the most valuable type.
The discovery of Paraiba tourmaline changed the market.
Paraiba tourmaline's price skyrocketed due to rarity.
Geological events created the conditions for tourmaline formation.
Nigerian and Mozambican tourmalines are similar to Brazilian Paraiba.
Famous tourmalines often have historical significance.
The Liddicoat tourmaline slice is a stunning example of tourmaline beauty.

The Allure of Tourmaline: A Gemstone Journey
Unveiling San Diego's Gemstone Secrets
The Legacy of the Dowager Empress Cixi
Tourmaline: From Mine to Market


"She banned foot binding."
"It's a serious bottleneck."
"It's called Heitorita."
"It looks like stained glass."


Chapters
00:00 Introduction to Tourmaline Part Two
02:30 Exploring San Diego's Gemstone History
05:57 The Dowager Empress Cixi and Pink Tourmaline
17:20 The Decline of the Tourmaline Market
18:22 Testing Tourmaline: Identification Techniques
22:01 Understanding Tourmaline's Colour Variations
25:01 The Treatment and Enhancement of Tourmaline
26:17 The Discovery of Paraiba Tourmaline
30:39 The Rise of Paraiba Tourmaline's Value
34:00 Geological Origins of Paraiba Tourmaline
38:25 The Global Appeal of Paraiba Tourmaline
39:05 Famous Paraiba Tourmalines and Their Significance
42:30 The Liddicoat Tourmaline Slice and Its Beauty

tourmaline, gemstones, San Diego, Dowager Empress Cixi, gemmology, pink tourmaline, gemstone testing, history, gem market, California tourmaline, Paraiba tourmaline, gemstone treatment, colour variations, gemmology, gemstone value, geological origins, famous gemstones, Liddicoat tourmaline

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Explore the fascinating science of gemstone colour, focusing on charge transfer mechanisms, the role of ions, and how treatments like heat affect gemstone hues. Perfect for gemmology enthusiasts and professionals alike.

 key topics

Charge transfer in gemstones

Colour centres and defects

Effects of heat treatment on gemstone colour

Titles

The Science Behind Gemstone Colours: Charge Transfer Explained

Unlocking the Secrets of Sapphire and Diamond Colours

 sound bites

"Blue sapphire's colour is a football match of ions."

"Charge transfer mechanisms reveal gemstone secrets."

Chapters

00:00 Introduction to Colour in Gemmology

02:53 Understanding Charge Transfer in Gemstones

05:35 Oxygen to Metal Charge Transfer

08:28 Metal to Metal Charge Transfer: The Sapphire Story

10:58 Organic Molecular Electron Transition

16:22 Colour Centres in Diamonds

22:39 The Science of Synthetic Diamonds

25:27 Understanding Green Diamonds

27:44 The Mystery of Pink Diamonds

30:48 Exploring Colour Centers in Diamonds

35:28 The Future of Gemmology and Podcasting

resources

Gem-A Gemmology Course - https://gem-a.com/education

Instagram - https://instagram.com/facetnationgemmology

Email - mailto:[email protected]

gemmology, gemstone colour, charge transfer, sapphire, diamond, heat treatment, colour centres, spectroscopy, mineralogy

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Join us as we explore the fascinating world of tourmaline, its formation, varieties, and historical significance, with insights from gemmologists Lucinda and Simon.

Tourmaline's chemical complexity and isomorphous series
Formation of tourmaline in pegmatites and metamorphic rocks
Varieties of tourmaline and their unique features
Historical lore and the myth of pyroelectricity
Testing and identifying tourmaline in gemmology

Simon and Lucinda

Titles
The Hidden World of Tourmaline: From Conquistadors to Colourful Crystals
Unlocking the Secrets of Tourmaline: Varieties, Formation, and Lore

 sound bites
"Paraiba tourmalines glow like neon blue."
"Rubellite is the most popular tourmaline."
"Rubellite is a deep, moody red."

Chapters
00:00 Introduction to Facet nation and Personal Updates
04:26 Shout Outs and Community Engagement
08:38 Exploring Tourmaline: A Gemstone Overview
12:59 The Chemistry and Characteristics of Tourmaline
17:28 Historical Significance and Unique Properties of Tourmaline
20:26 The Science Behind Tourmaline
24:17 Formation of Tourmaline
29:24 Varieties of Tourmaline
36:40 Favourite Tourmalines and Their Unique Qualities

Instagram - https://instagram.com/facetnationgemmology

tourmaline, gemstones, gemmology, mineral formation, jewellery, gem varieties, gemstone history, gem testing, gem inclusions

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