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Glass Identification - Post here for all ID requests => Glass => Topic started by: Littleblackhen on June 02, 2010, 08:15:36 PM

Title: What glows pink under UV?
Post by: Littleblackhen on June 02, 2010, 08:15:36 PM

I have a lovely vintage necklace, made of yellow and white seed beads in a twist.  Tonight I accidentally shone a UV light on it, and the yellow beads all turned bright pink in the light.  I haven't seen this particular effect before, what would do that?

Title: Re: What glows pink under UV?
Post by: Paul S. on June 02, 2010, 09:38:49 PM

Might possibly be something to do with Cadmium sulphide - try here ......http://www.glassmessages.com/index.php/topic,95.0.html
this came courtesy of Anne (Mod.) about two years back.  :)   

Title: Re: What glows pink under UV?
Post by: Littleblackhen on June 03, 2010, 06:36:01 AM

That is interesting, thanks.

Is it an indication of age to have beads containing cadmium sulphide or do modern producers still use it?  The necklace looks as though it has some age with the type of clasp used but it is in very good clean condition so I am not certain how old it is.

Title: Re: What glows pink under UV?
Post by: Paul S. on June 03, 2010, 07:02:34 AM

sorry, can't help there  -  I only wear my beads when I'm being Susan on Sundays - however, feel sure an expert of the fairer sex will be able to assist.

Title: Re: What glows pink under UV?
Post by: Anne on June 03, 2010, 01:07:00 PM

One of the links from our Links Library over on Pottery & Collectables might be useful:
http://www.morninggloryantiques.com/JewelChatFindings.html :thup: