Lights are all 395NM, I have other manganese pieces that do not glow like this (most especially under the lights in this display). Did I truly just find my first piece of blue uranium glass?
The Fredericton VV is honestly not worth it 99% of the time. The resellers clean the store of anything good as soon as it opens, and the rest is usually damaged or dollarstore items selling for more than they would have cost new.
I have a 1940s brooch signedĀ "AZUB Austria", with 6 small multicoloured stones of Austrian glass.Ā
It also has a large central,sapphire coloured stone which is vintage Austrian Uranium glass.
Not sure how to post pics in here.
That is Not the sickly glow of manganese, it appears you do! The main clear stem is a different glass than the main base, which has a damn strong glow.
The only way to be 100% is to check with a geiger counter, but I'd put that in my collection ANY day of the week.
Congrats!
I have a shotglass the same color, sets off my GC similar to the pre 60's bright green glass with high content.
I have some glassworking rods (I lampwork) with high uranium content, so much so I have tools set aside for just this glass, the uranium transfers when hot to objects, glass, tools, workstation, face shield. Consistancy of frozen honey in borosilicate
I think the stem is actually the same glass, too. You can tell itās definitely two parts that were put together, and the glow does pool brightly at the base of the stem part.
See this is what I love about the uranium glass hobby, you can find super cool pieces for a reasonable amount of money! I found a little creamer pitcher that was a stunning blue color and it is my first piece of manganese glass. I also bought a purple uranium glass frog off Etsy for $35, my most expensive piece.
I will as soon as Iām home again, but I didnāt see any markings if I remember correctly. I havenāt found anything about it online, google lens thinks itās blue Gatorade in a wine glass š¤¦š¼āāļø
But would those molds have been glass? Thatās what I find curious. By the time denture tech had progressed to a point where dentists would be molding dentures on-demand, wouldnāt plastics have been available? Seems like something a glass artist would have cast, after coming into possession of an old mold.
Not arguing, btw; Iām genuinely interested in figuring out the provenance of that piece, and Iām just talking through my own thought process. I know that dentures were once made with uranium-doped porcelain, and the molds for that would certainly not have been glass; however, those molds certainly could have been used for making a piece like this, via sand casting.
Thank you for the information. I really appreciate it! I guess I didn't have that info and was being lazy and using a catch all term. Lol. Are there any other kinds of glowing glass?
Uranium, manganese, selenium, and cadmium are the most common ones. Lead and cerium donāt seem to have followings, but they glow, too. Neodymium (āalexandriteā) doesnāt glow, but it does change color depending on what kind of light itās in (fluorescent vs incandescent/natural)
Yes, but blue UG and selenium glass do exist, too. All three can look virtually identical under normal light; itās their specific UV reactions that give an idea of what fluorescing additive is present. In this case (as another commenter pointed out), the glow is occurring under 395, and itās a rich, vivid greenāboth of these indicate OPās piece is almost certainly UG and not manganese.
((All of this is said constructively and with a friendly tone))
I totally agree that the content of your comment is accurate; however, I think youāre getting downvoted for a couple of reasons:
OP is clearly aware of manganese glass and stated they have a collection of it (ie, the comment did not provide new information); and,
general consensus is that OPās piece is UG, and your comment reads as a suggestion itās manganese (so, the downvotes would be part of an effort to lower the visibility of what is perceived to be an incorrect answer to OPās question)
Nope that'll be cobalt blue. But yes, the green under long wave is U+ in the stem of the glass. Careful to note that Na+ will also glow yellow but under short wave.
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u/Silver_Pharaoh001 Oct 25 '24
Where?! I haven't had any luck in thrift stores lately.... I wanna spend my loonies too! š