I don't know much about it, it's the only piece I've got that is made from two distinct layers of glass.

If I position my Geiger counter in the perfect position, I can get a reading in the range of 1.5 - 2.2 μSv/h

If I move the Geiger counter even a few centimeters away, or even position it at a less-optimal position, the reading returns to background levels.

For reference, the average value of exposure while flying inside of an airplane is 3 μSv/h. So even if you place one of my cups right next to your head you are likely being exposed less than while flying in an airplane. Not that I recommend doing this!

Additional Photos:

Camera: Canon 2000D Lens: Canon EF 50mm 1.8 / EFS 18-55mm ISO: 100 - Aperture: Various - WB: 5200k Exposure: 5 Shot HDR - RAW Lighting: 4 x 10 watt - 365nm UV LED

This is a space for collectors to answer any questions about uranium glass that people may have.

I'd like to start with some questions I get pretty often (and that were recently asked by the admin of the instance, Wintermute):

How much Uranium is in the glass anyway? Should you even be holding that?

The actual uranium content in uranium glass is usually between trace amounts and 2% by weight, but you can find pieces that are up to 25% uranium by weight. (Source: ORAU Museum of Radiation and Radioactivity) Many of my pieces, when measured with a Geiger counter, are within what's considered a low-risk range of radioactivity. Some people use their uranium glass, but I prefer to keep my handling of it to a minimum.

I think it only fluoresces like this under black light, right? Does it just look like normal glass in natural light?

UV light in general causes the glass to fluoresce. Bl