.

Original Message:   Re: Dissections of "cherry amber" phenolic resin beads/interesting
Hey Rosanna, When you heated the Phenolic Amber beads did you ever cross section them to see if the darkened color went all the way through VS surface? As well- the beads heated in Africa that were darkened by heating? I don't recall reading that, but I'm betting you did. The fact of phenolic amber beads changing color because of oxidative chemical reactions over short and long time periods is a great help in understanding what is causing variations in appearance of some beads. As well as, of course the fact of originally dyed beads, and beads intentionally manipulated in Africa by heat, and reshaping, drilling, etc. I suppose the cracked beads with dark veining are the result of "off gassing" / air introduction as the dark veining appears to follow the cracks. Thanks, Anne
Copyright 2021
All rights reserved by Bead Collector Network and its users

BackPost Reply

 Name

  Register
 Password
 E-Mail  
 Subject  
  Private Reply   Make all replies private  


 Message

HTML tags allowed in message body.   Browser view     Display HTML as text.
 Link URL
 Link Title
 Image URL
 Attachment file (<256 kb)
 Attachment file (<256 kb)