Thanks for taking the time to write this out, Brad. You are correct in that it is the metallic sheen on the glass surface that is the real problem - we can't tell silver from lead or cadmium by just looking at it so ALL metallic surfaces are a problem. We still can't afford a hand-held spectrometer to check these beads so I'm sorry to say that they all end up in the same pile. If someone would like to donate one please let me know.
Older editions of Rubino Oro and Evil Devitrifying Purple also are not suitable for a bead surface even if they aren't reduced to a metallic surface due to the demonstrated lead content in these glasses.
Robert
__________________
Robert Simmons
(Former) Director for Bead Donations
Beads of Courage, Inc.
|