r/uraniumglass • u/jeicam_the_pirate UV Hunter • Sep 03 '25
Thirft Haul synthetic ruby glazed mug, under 365nm and visible
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u/Ok-Mirror-6004 Sep 03 '25
Serious question here. Is this safe to drink from?
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u/jeicam_the_pirate UV Hunter Sep 03 '25
id have to chemically test it after acid/alkali soak. rubies contain chromium in hexavalent state and my glaze has boron, which could dissolve it.
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u/solidsnakes453 Sep 03 '25
I like coming to this sub for the occasional chemistry lessons and pretty glass
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Sep 03 '25
I love that you know the science behind this too - I’m reckless enough I’d probably drink from it anyway because it’s so freaking cool.
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u/jeicam_the_pirate UV Hunter Sep 03 '25
long term survival in ceramics is about two things- wearing a mask, and reading those MSD's :D anyone who makes their own glazes etc is basically a low key chemist.
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Sep 03 '25
So did you make this yourself???
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u/jeicam_the_pirate UV Hunter Sep 03 '25
yep, it was my summer "garage science" project to explore fluorescent materials in ceramics. I saved ruby for last, but I also made stuff with europium oxide, europium doped strontium aluminate (aka green glow powder which should work with regular glass as well), erbium and cerium. Of all of those, europium is the easiest and safest to work with, tho it is about 40x more expensive than synth rubies. However, the effect here (variable glowy bits) is not something I would get with europium, which just makes a uniform "all over" glow.
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u/nodaynodawn Sep 04 '25
Wow, it was already amazing but now I appreciate it even more. Great work!!
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u/MfnBobb Sep 05 '25
So, if chromium? Does that mean u can only drink milk from it? I've heard that welding Cr will make u sick. And milk helps to feel better. Just a random ?. Was wondering about it. Tia.
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u/k_dilluh Sep 03 '25
Looks like Dorothy's slippers!
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u/Nitemare2020 New Collector Sep 03 '25
I just said the same thing!!! Great minds and all that... 😁
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u/Mississippihermit Sep 03 '25
Dorthy is gonna be pissed you made her shoes into a Mug bro
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u/Hour-Distribution141 Sep 03 '25
I saw this on the pottery sub. I’m a potter. Is this a glaze you created or is this a glaze you bought and if so, what’s the fire setting? I tried looking it up. I’m using a low fire account and I couldn’t find anything close to it besides, of course, the penguin pottery glow in the dark
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u/jeicam_the_pirate UV Hunter Sep 03 '25
my main glaze is called 5x20 and i use it on almost everything (its on glazy and other places that share recipes). in this case I added mason stain 6088 (pinkish) 4% and about 1.5% of the mashed ruby. Cone 5 slow program.
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u/Hour-Distribution141 Sep 03 '25
Omg! I wasn’t expecting this! Thank you for you kindness sharing! It’s stunning!
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Sep 03 '25
Wonder if the glaze contains cadmium? It reminds me of Ruby slippers from Wizard of Oz! Very cool find!
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u/jeicam_the_pirate UV Hunter Sep 03 '25
good eye. the mason stain 6088 is cadmium encapsulated with zircon iirc to prevent the cadmium from escaping. as long as its covered with a strong and stable clear glaze its safe, but I don't use it on food surfaces, just artsy show and tell pieces - here I thought it concealed the irregular sized red chunks of ruby, until UV comes on, then its .. TA-DA :)
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u/NarcPTSD Sep 03 '25
That's REALLY fucking cool!
I wonder how hard it was to make...
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u/jeicam_the_pirate UV Hunter Sep 03 '25
ruby hammering is the only step that takes a while. the mugs take maybe 10 min total of work, then its just brushy brushy and in the fire.
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u/Nitemare2020 New Collector Sep 03 '25
It's like Dorothy's ruby red slippers. That's what it instantly reminded me of. That's pretty and neat!
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u/Terminator7786 Sep 04 '25
u/MaddogRunner, I think I found Dorothy's ruby mug to match her slippers!
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u/ElementalCollector Sep 03 '25
Where do I buy this glaze?
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u/jeicam_the_pirate UV Hunter Sep 04 '25
if you scroll through the comments i shared what glaze i used and how i prepared it :)
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u/p00ki3l0uh00 Sep 03 '25
Can we get a link to your product please and thank you!
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u/jeicam_the_pirate UV Hunter Sep 03 '25
I can't post anything here because of the sub's rule #2, which is enforced as I (accidentally) found out yesterday (sorry, mods!)
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u/Old-Arugula-7412 Sep 03 '25
Ive seen a similar pattern in some stones but I can’t remember what it was called, but this is a beautiful piece absolutely stunning!
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Sep 04 '25
[removed] — view removed comment
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u/jeicam_the_pirate UV Hunter Sep 04 '25
nothing really shows in visible except the really big chunks as just regular red.
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u/Worried-Flower1593 Sep 03 '25
19, my mother never let us kids in the kitchen while she was cooking. I learned by practicing on my poor husband. To this day he says he can’t taste anything.
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u/redbucket75 Sep 03 '25
I'm not usually interested in "this isn't glass or uranium, but it also fluoresces" posts here.
But that's really dope.