Tangled up in Neon Blue: A Review of Paraíba Tourmaline | GIA Knowledge Sessions Webinar Series

By admin | February 1, 2023 |

Tangled up in Neon Blue: A Review of Paraíba Tourmaline | GIA Knowledge Sessions Webinar Series

GIA Knowledge Sessions Webinar – recorded live on February 18, 2021.

Paraíba tourmaline, discovered in Brazil the 1980s, took the gem world by storm. Neon blue to greenish-blue and colored by copper, they were gems unlike any other. It was a pleasant surprise, therefore, when other glowing, copper-colored tourmalines were discovered in Mozambique and Nigeria in the 2000s. Since then, all tourmalines with these characteristics have been known as Paraíba tourmaline. What is the history behind these finds and the science behind their beauty? Follow Senior Staff Gemologist Dr. Yusuke Katsurada as he dives into the unique properties of Paraíba tourmaline as well as how GIA scientists determine the geographical origins of these scintillating stones.

Read more of Dr. Yusuke Katsurada’s research:
https://www.gia.edu/gems-gemology/gems-gemology/fall-2017-labnotes-flux-heated-ruby-beryllium-diffused-sapphire
https://www.gia.edu/gems-gemology/spring-2019-labnotes-chatoyant-quartz-tourmaline-doublet
https://www.gia.edu/gia-news-research/cuprian-liddicoatite-tourmaline

Posted in Blue Tourmaline

12 Comments

  1. heena soni on February 1, 2023 at 2:51 am

    Nice



  2. Golriz Pakrah on February 1, 2023 at 2:52 am

    The topic was very intresting but unfortunately the texts were not clear.



  3. wesley moniaci on February 1, 2023 at 2:59 am

    TYVM, I’ve learned a great deal watching this video. I applaud the GIA for making this public and sharing real knowledge with up and coming gemologist as well as the normal Joe needing to learn about such beautiful gemstones. I’m going to be addicted to the tutorial video’s and gemstones !!!!



  4. CRISTINA LAGO on February 1, 2023 at 3:02 am

    Thank you, amazing presentation!



  5. Ginger Mullins on February 1, 2023 at 3:08 am

    Thank you so much! This was wonderful!



  6. heena soni on February 1, 2023 at 3:18 am

    Plz help us



  7. Brandon Silva on February 1, 2023 at 3:23 am

    A turmalina paraíba, se parece com a apatita, não?



  8. Nicho Mageras on February 1, 2023 at 3:32 am

    Great video, thank you!



  9. Sunarti Judge on February 1, 2023 at 3:34 am

    Good knowledge thank you.



  10. Rudy Habib on February 1, 2023 at 3:37 am

    how do you detect heat treatment in Paraiba Tourmaline?



  11. Goldcic Vibefel on February 1, 2023 at 3:42 am

    Paraiba, Brazil appears to have been attached to Cameroon, Africa,.

    I had a tiny 25 pt. natural Brazilian Paraiba neon blue tourmaline that I dropped into my carpet. It took about 6 hours to find.



  12. Panaceias Úberes on February 1, 2023 at 3:42 am

    This is like a trip to a very complex maze… and we have an amazing guide driving us through it. Thank you very much, Sir.