Gem-A Live: Fluorescence

Gem-A guest lecturer Julia Griffith FGA DGA, tells us more about why fluorescence occurs and how it can aid us in the testing of gemstones.
This webinar was created as part of a weekly series of webinars known as Gem-A Live.
Gem-A Live is created by Gem-A in association with jewelleryadvisor.com.

[@phoenixadams9962]

It was the minerals exhibit in the dark room with the black light that still drives my interest in gemstones, real or synthetic, that change colors under different types of light, from Alexandrite to Zultanite. I make fashion jewelry as well as fine jewelry.

[@user-qc7jh3vg5l]

Thank you very much. You are wonderful.

[@tejaswinisoni7434]

Thank you ma'am. You are wonderful.

[@kathydewey1567]

It was the work of a good teacher

[@stefanusweyers3767]

Thanks Julia, a very broad topic very well condensed and presented, appreciated!! Well done. Fanie

[@roryemilio7835]

I guess Im kinda off topic but does anybody know of a good site to watch newly released series online?

[@brodieatlas7295]

@Rory Emilio Flixportal :P

[@roryemilio7835]

@Brodie Atlas Thanks, I signed up and it seems to work :) I appreciate it !

[@brodieatlas7295]

@Rory Emilio Happy to help :)

[@LucianoJuly]

Thank you !

[@unbearifiedbear1885]

This is a criminally under-subscribed channel
Very clear and concise; really easy to listen to and very informative.. this video appeals to a really wide audience, tbh.. everyone from students to amateur mudlarks and polishers
thanks very :)

[@arezooabedi1151]

Thank you very much for your very nice presentation

[@jonathanphillips3967]

Thanks Julia very well presented on a complicated topic!

[@brianmccabe9827]

great presentation as usual

[@charudattamukhedkar5170]

Thanks Julia it’s a great intro to jems thanks to you for this presentation
I have a question if you could reply
I have seen a yellowish golden stone which glows brillent Red in LWUv if you could let me know what it is pl
Thanks again

[@faridhasansazali2256]

What colorless crystal that fluoresces moderate yellow under UV 365nm and moderate blue under UV 254nm?

[@pixel6604]

Hi Julia!Please HELP Me!! I made syntetic Ruby, but my probleme, that in lot of crash it . I made wiht Verneuil methode. Now I thinking that I put it a litle Autoclave and wiht hidrothermal growing I it. But I don't know all. My Question, what is better dissolve, wather , NACL or Natriun hidroxide ? How many is degrees 200 c or higger? And if i use acid how many is PH? Can you me help? Thank You. Mihály from Hungary.

[@arthurstirling2657]

can you measure the fluorescence of a gemstone?