Gem-A Live: Flux-healed Ruby
Вставка
- Опубліковано 19 чер 2024
- Gem-A guest lecturer Julia Griffith FGA DGA, tells us more about this highly prevalent ruby treatment: flux healing.
This lecture covers the following:
- A brief history of flux healing
- What is flux?
- Mong Hsu ruby
- Flux-healing method
- Effect of treatment
- Identification
- Testing
This webinar was created as part of a weekly series of webinars known as Gem-A Live.
This session was brought to you in association with jewelleryadvisor.com.
Thank you for this great video - Very informative, comprehensive and well presented!
I would like additional information. Gem mining most of the ruby fracture needs to be filled with glass or other compounds to facilitate grinding.
Glass that can be filled with ruby divided according to chemical composition, there are several types as follows:
1. Soda-lime glass
2. Borosilicate glass
3. Lead glass or crystal glass This type of glass has more than 24% lead oxide and has a high refractive index.
4. Opal glass
5. Aluminosilicate glass
6.Alkaline-Earth Alumino silicate
7. Glass-Ceramics
8. Crown glass
9. Flint glass
10. Bismuth glass
Because lead glass has good optical properties but is not durable and can dissolve in water, acids, and alkalis when used for a long time. Therefore, choose to buy gemstones that do not contain lead glass and bismuth glass. Other types of glass the quality of gems will be different, such as bismuth glass. However, when purchasing gemstones, you should choose the type that does not contain glass contaminants. and be inspected with an X-ray Fluorescence (XRF) machine only because it can determine the amount of lead in percent. To consider the appropriate purchase price
Thanks Julia, a great (as usual) re-visit on the topic
I think perfect presentation and talk! :) Thanks!
Julia , very useful information , lovely video , thanks
I recently heard of a flux immersion technique for growing rubies that creates brilliant quality gems, and this gives me a good idea of how they do it, except how to create a vessel that can maintain those temps for that period of time.
nice video.i am suminda from ceylon.thanks
Merci! Super
thanks for the informative video, its very helpful , i have a question : does flux healed treatment used for color enhancement ?
Thankyou so much for taking all different treatments on gemstones it was nice got lot too study.
I realize I'm kinda off topic but does anyone know of a good place to stream new movies online ?
Very interesting as I have been cutting some Burmese rubies, the rough stones have an almost glazed appearance on the surface and do not exhibit the sharp fracture edges normally encountered with corundum. At the pre-polish stage of the gem, I encounter small pockets like opened bubbles and I have to polish through these if I can, at final polish tiny white lines, like fracture lines are all over the stones which are very difficult to polish out and the finish gem still retains these fine white lines. The gems are finishing at 1ct or above and present very well with beautiful colour and lustre. As a cutter, I'm frustrated and disappointed with these white lines that track across the stone, mostly invisible without a 10X loop, but depending on the angle can sometimes be visible. I would appreciate your input on this issue. Thanks.
Will glass filled or Flux healed Ruby still shown as Ruby under the Gem Tester II? Thx
Plz send me how can corundum heart treatment treatment
Dear Julia,
I registered too late for the last week webinar (fluorescence). Can you send me the link to the replay?
Thank you in advance,
Pierre-Marie Rodelet
Hello! The fluorescence webinar will be available on our channel later this week. Subscribe to receive a notification.
Madam. How much price per carat?flux healed ruby. 5 carats size.
Why don't we treat emerald's this way as they too do have lots of fractures? Is it because of less hardness of emerald that they cant be treated with treatments involving immense heat?
It would mainly be a case of temperature. Emeralds are treated with resins/polymers, sometimes in the rough, which fills the fractures and can help the durability (depending on the filling)
kindly reply
What kind of chemical is the flux?
The flux is borosilicate. There is also additional aluminum added to the flux. It's in the video. The chemical formula is SiO2B203 + Al
Sad to hear you use the term certificate for a lab report. It has become a industry wide misnomer.
allen whitehead - I absolutely agree - it was a slip during the presentation :)
Whats wrong with her saying that if you don't mind me asking
@@kanamekiyru Labs do not certify anything. They just report gemological findings. Many in the industry these days like to call a stone a "certified" this or that, implying some kind of guarantee.
please tell me how to colour in ruby ..i will give you natural ruby necklace & you tell me how to colour in ruby & full dyed process...wait for your response