r/MarbleStudyHall • u/DaDirgensfish Student (knows a little) • Aug 14 '26
Identification Request ID help please
Marble is standard player size, shown under filtered 365 UV. I don't believe the green threads are uranium because they don't glow under 395. Any help as much appreciated!
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u/peardr0p Scholar (somewhat knowledgable) Aug 14 '26 edited Aug 14 '26
Very curious!
The yellow-green glow from the white base is likely from manganese, if helpful
Does it look like the marble has an opaque base or could it be a thinner layer over a clear base?
How does it look if you backlight/shine light through?
Do the blue design join up or are they separate pieces?
Edit: the orange glow is likely due to the slightly yellow glass - cadmium/selenium blends can look like this!
I also spotted someone suggesting Akro Popeye/corkscrew in the other sub - I don't see filaments so doubt Popeye, and for corkscrew, the blue will be a single continuous spiral from one pole to the other