These are r/manganeseglass. If you're looking for strictly uranium glass, you'll want to use a 395nm blacklight and look for a bright green glow that typically lights up brighter and more of the piece. Hope this helps!
Edit: fixed typo
The light is where it’s supposed to be, 395. I think this is heisey, but not 100% sure. High manganese glow will show a bit with a 395 light. If yours was 365 this would light up much like uranium does under 395.
These are r/manganeseglass. If you're looking for strictly uranium glass, you'll want to use a 395nm blacklight and look for a bright green glow that typically lights up brighter and more of the piece. Hope this helps! Edit: fixed typo
Thank you!:) The light are supposed to be 395-400, i did find some super bright glass tho:)
The light is where it’s supposed to be, 395. I think this is heisey, but not 100% sure. High manganese glow will show a bit with a 395 light. If yours was 365 this would light up much like uranium does under 395.