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Old 01-12-2012, 09:54 PM #17
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Default Re: FS: [2] 1" Uranium Marbles

Is this stuff dangerous? Do they glow in the dark?
I might want to buy a biggie.


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Old 01-12-2012, 10:00 PM #18
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Default Re: FS: [2] 1" Uranium Marbles

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Originally Posted by borgqueenx View Post
Is this stuff dangerous? Do they glow in the dark?
I might want to buy a biggie.
So long as you don't intend to eat them, the risk is minimal afaik.

Of course if you're eating glass... well you have other issues already...

They glow when exposed to UV and near UV light such as 405 and 445nm lasers.
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Old 01-12-2012, 10:00 PM #19
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Default Re: FS: [2] 1" Uranium Marbles

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Originally Posted by freeloader700 View Post
Hey I have two of these crackled 1 inch uranium marbles

You cannot find them anywhere !

I am willing to let these two go



$20 ea + paypal fees/shipping
That price is more then outrageous. I suppose the market will decide, but come on....
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Old 01-12-2012, 10:01 PM #20
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Default Re: FS: [2] 1" Uranium Marbles

borg...

They glow under UV light. i.e black light, 405nm Laser, etc.

Here is a lil vid or a 5mW 405nm with some 5/8" marbles

Uranium Marbles and 405nm Laser glowing - YouTube
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Old 01-12-2012, 10:07 PM #21
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Default Re: FS: [2] 1" Uranium Marbles

And what does "crackled" mean? Anyway 15 dollar shipped?
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Old 01-12-2012, 10:09 PM #22
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Default Re: FS: [2] 1" Uranium Marbles

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And what does "crackled" mean? Anyway 15 dollar shipped?
I can't believe I'm saying this to a vet....

USE THE SEARCH!!!!
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Old 01-12-2012, 10:13 PM #23
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Default Re: FS: [2] 1" Uranium Marbles

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Originally Posted by InfinitusEquitas View Post
I can't believe I'm saying this to a vet....

USE THE SEARCH!!!!
Forgive me to be on ipad with crappy 3 g now...
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Old 01-12-2012, 10:25 PM #24
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Default Re: FS: [2] 1" Uranium Marbles

Yeah that's crazy.

I'm going to find some 1" uranium marbles to sell.......
Even if they aren't made by anyone right now, it can't be too hard to get some made custom, for much less.
$43.26 for 2 marbles is just crazy talk.

"crackled" means they are full of cracks.
You heat them up in boiling water and then drop them into cold water. it causes them to fracture.
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Old 01-12-2012, 10:34 PM #25
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Default Re: FS: [2] 1" Uranium Marbles

Okay I'll do $15.
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Old 01-12-2012, 10:35 PM #26
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Default Re: FS: [2] 1" Uranium Marbles

until i find a source for some...

,RARE,, 1" Vaseline, Marble, GLOWS ,Under Black Light | eBay

http://www.ebay.com/itm/RARE-1-Vasel...item519867b1c1
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Old 01-12-2012, 10:40 PM #27
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Default Re: FS: [2] 1" Uranium Marbles

Quote:
Originally Posted by Mohrenberg View Post

"crackled" means they are full of cracks.
You heat them up in boiling water and then drop them into cold water. it causes them to fracture.
Which means they look cool because of the way the light reflects (refracts?) with the internal cracking. It does make them more fragile but it should not make them more expensive.

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Old 01-12-2012, 10:43 PM #28
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Default Re: FS: [2] 1" Uranium Marbles

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Originally Posted by jcranmer View Post
Which means they look cool because of the way the light reflects (refracts?) with the internal cracking. It does make them more fragile but it should not make them more expensive.
i keep thinking you're yobresal lol
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Old 01-12-2012, 10:46 PM #29
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Default Re: FS: [2] 1" Uranium Marbles

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Originally Posted by Mohrenberg View Post
i keep thinking you're yobresal lol
LOL! My master plan is working.

While I'm at it, here are some semi-clear 1" ones:

https://touch.ebay.com/tablet/#item?id=370570560516 (crap that link may not work, on my iPad at the moment)

These are clear in the middle with a colored stripe on the ends.

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Old 01-12-2012, 11:55 PM #30
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Default Re: FS: [2] 1" Uranium Marbles

@Moh - Larger sizes are also fun...
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Old 01-13-2012, 01:20 AM #31
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Default Re: FS: [2] 1" Uranium Marbles

i read this on how to make the marbles crackled ?

If you don't want to get ripped off by people selling "crackle marbles" 's how you do it. Fill a deep cake pan with as many marbles as you want to "crackle" remember, they will be hot so don't even come close to filling the pan. Place pan in the oven at 500 degrees F for about 20 - 30 minutes. 's the fun part: Have a metal bucket full of water and dump the hot marbles into it. After they have cooled, dump the marbles, let them dry out and you have crackle glass. To take it a step further if you would like to make glass frit, simply beat the marbles while they are still in the pan and the water has been removed, and keep crushing it until you get your desired size. These can also be used as a pottery glaze once crushed.
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Old 01-13-2012, 02:07 AM #32
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Default Re: FS: [2] 1" Uranium Marbles

Thermal cracking is pretty easy to achieve.. Provided the marbles are soft glass, any slow heating / medium rapid cooling will work.

There are special cases where glass can be so "loaded" with tensions, that they're fine until tapped in one specific spot, then they will literally explode..

Prince Rupert's Drop - YouTube

Google "prince Rupert glass" or "Prince Rupert's Drop"
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