I'd have to think the 2300-2400 F destroying the impurities is the reason that one crumbles. It was full of impurities. The normal treatment for ruby is 1800 C; 3200-3300 F. That's "way above" what you did. And it doesn't make "normal" rubies crumble. (if you went to 2400 C, you went way to hot, and that would possibly be why it fell apart as well...)
It is very interesting that we can make synthetic rubies and sapphires for industry from powders of alumina oxide and chromium oxide, sapphires only need the alumina oxide powder.
Give minimum not above 1000 degree and 5 minute and give sudden cool use water and after this process several time you got good result 👍 every time you saw improvement the stones 👍
I think what went wrong here is that you overcooked them. I've seen it mentioned in papers before, but if you overheat a gem while treating it you can destroy it, causing it to lessen or even lose it's color and become unstable, just like the rubies here did. perhaps you might have more success treating higher quality corundum's? buying some sapphire gravel from gem mountain might provide a good amount of stones to test on. they usually have a lot bigger of a reaction to treatment :D
I'm pretty sure a lot of corundum is dyed, so not only the red color disappears, but more of the fluorescent areas are exposed since the dye cooked off.
UV sounds simple but, there a wide range in UV type light so, more importantly, what is the nm frequency of your light? I suggest using 365nm but maybe rubies are better under a different wave length?
Would it help to put a bit of paper in the crucible and maybe put a lid on it to try and pull the oxygen out? It seemed like maybe the material in the cracks oxidized and swelled.
Good day, you know, I would like to see if a hexagonal Ruby looks good already cut and polished. I ask you this question because I don't know where there is a business like this here and I want to bring my own that I have. They are transparent for more than 400 carats and others for less carats. but although these occur. They would be good like Fura Star Ruby
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I'd have to think the 2300-2400 F destroying the impurities is the reason that one crumbles. It was full of impurities. The normal treatment for ruby is 1800 C; 3200-3300 F. That's "way above" what you did. And it doesn't make "normal" rubies crumble. (if you went to 2400 C, you went way to hot, and that would possibly be why it fell apart as well...)
Glad you're back, and with an interesting prospect too.
It is very interesting that we can make synthetic rubies and sapphires for industry from powders of alumina oxide and chromium oxide, sapphires only need the alumina oxide powder.
Has been a while, nice to see you are still around.
Beautiful sharing 😊
The oven is apparently powerful. How much electricity did it consume?
I like that they fluoresed better but they seemed to become lighter in color not more transparent
Give minimum not above 1000 degree and 5 minute and give sudden cool use water and after this process several time you got good result 👍 every time you saw improvement the stones 👍
I think what went wrong here is that you overcooked them. I've seen it mentioned in papers before, but if you overheat a gem while treating it you can destroy it, causing it to lessen or even lose it's color and become unstable, just like the rubies here did.
perhaps you might have more success treating higher quality corundum's? buying some sapphire gravel from gem mountain might provide a good amount of stones to test on. they usually have a lot bigger of a reaction to treatment :D
Great video. Great experiment. I love Ruby’s.
I'm pretty sure a lot of corundum is dyed, so not only the red color disappears, but more of the fluorescent areas are exposed since the dye cooked off.
I try my sapphire stones this can work's 👍 get good shine and craks fill need 100 of time short time heat and sudden cool , that is work's
I love finding corundum in western NC, Still a newbie, could you give a quick explanation for heat treatment of Ruby ? Thanks.
UV sounds simple but, there a wide range in UV type light so, more importantly, what is the nm frequency of your light? I suggest using 365nm but maybe rubies are better under a different wave length?
What type of UV light do you use?
How those cracks filled using corundum powder? I need to know , explain the whole process. please
Beatyful
Would it help to put a bit of paper in the crucible and maybe put a lid on it to try and pull the oxygen out? It seemed like maybe the material in the cracks oxidized and swelled.
Could be something to try in future tests.
hi, friend. question, have you cut and polished a rough ruby?
I have tools for cutting and furnace and vacuum furnace .
❤❤❤
Good day, you know, I would like to see if a hexagonal Ruby looks good already cut and polished. I ask you this question because I don't know where there is a business like this here and I want to bring my own that I have. They are transparent for more than 400 carats and others for less carats. but although these occur. They would be good like Fura Star Ruby
❤❤
I’m sure there are other better way to heat treated, I’m myself has been looking in a different way to heat treated .
Where did you get the rubies?
Search "madagascar stone mix". Comes with various types of stones
I'm gonna try this with a different method that I''ll reveal when I post the vid of the results
Saludos
Where I can heat 2500 C, if you know anyone can do this please let me know. Thank you.
graphite furnace 2400 C
Maybe if it was clean, it might work alittle better...
👍 PAKAI LAMPU ULTRA VIOLET MENJADI JELAS WARNANYA.
so, you destroyed them!
I don't know, it just looks like to me. You destroyed them you know what I meani don't really get it I ho
Heated and treated gems are not good for astrology purpose🙏🙏
Yikes.
ha ha ha ... this guy doesn't have a bloody clue how to heat treat...😃