Leone Langeslag
1 min

Nieuwe Gemmology Today

1 min

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De inhoud van deze uitgave:

FEATURE INTERVIEW: MEET WIMON MANOROTKUL – a skilled gemstone and inclusion photographer and co-founder of Lotus Gemology.
GEMMOLOGY TODAY CONTEST 22 – One lucky contestant will win our Coloured Gemstones course!
LAB TALK – Two very interesting stones, polar-opposites of each other, in terms of value, but both equally fascinating.
World Gem Foundation Workshops & Courses
LITERARY SPEAKING – Richard Wise reviews Sapphire: A Celebration of Colour by Joanna Hardy.
GRADE SCHOOL: Padparadscha Sapphire & the Ownership of Words – Richard Hughes looks at the complexities of describing ‘Pads’ and why it is hard to find a consensus.
ROCK ON: New giant gem Corundum boulder from Sri Lanka – Thanong Leelawathanasuk, Supparat Promwongnan, Pornsawat Wathanakul, Visut Pisutha-Arnond, Wilawan Atichat and Gamini Zoysa explain why it is a discovery of epic proportions.
THINK TANK: Letting It Shine - Governance for Equitable Coloured Gemstone Supply Chains – The Coloured Gemstones Working Group explores how the sector in Sri Lanka can develop in line with rising expectations for responsible sourcing.
CULTURE CLUB: Nine Gems - Navaratna – Gemstone Detective Kim Rix looks at the Navaratna Ring and its cultural and spiritual significance.
UPON REFLECTION: History and Utility of Gemstone Reflection Pattern Generation and Analysis – Michael Cowing investigates instruments that have been used to analyze gemstone reflection patterns and their connection to reverse ray tracing.
LEARNING CURVE: The Challenge of the Cabochon – Nina Zolotukhina shows us how to master the art of testing cabochons!
THE SPICE OF LIFE: Blues Rock - Lapis Lazuli – Dutch gemmologist Leone Langeslag looks at Lapis Lazuli, a deep-blue metamorphic rock that has been used since antiquity for its intense colour.

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