Topic: Tangerine Orange Uranium Glass Possible?

[mrs sultana]

Having recently bought a 'black light' I can see now that several of my Czech crystal bead necklaces, not only glow shades of yellow and green, but also a strong tangerine, and a deep red.  Some which look green in daylight, look navy blue under black light. :mrgreen:

Grateful for any information about this, names, types, made by whom etc   

Thanks and great forum.

[Frank]

Uranium only gives a green reaction. Other minerals used in glass fluoresce in other colours.

[Glen]

The orange glow is most likely caused by cadmium.
http://www.glassmessages.com/index.php/topic,21182.0.html

[mrs sultana]

OMG Cadmium ?  Isn't that the nasty stuff from atom bombs that melts your bones ?  Those poor glass-workers.

Very intersting links in the replies, thank you all.  Someone shows a bottom, (of a vase) which glows the exact same colour as one of my necklaces.

The others are mostly a very bright transparent tangerine colour.  It is quite amazing.

We are away for one week tomorrow, but when I get back, I will attempt to photograph some of the things, to show you all.

What a fascinating subject this is, I have mispent my day reading about coloured glass instead of ironing and packing for our upcoming trip.

Also, maybe it was just me, but I had trouble logging in, had to come in via the activation email again.

Bye for now, and thanks again.

[alexander]

Cadmium is a toxic metal but I don't think it will melt your bones.
It is commonly used in batteries.