Cypraea also have problems with fading, particularly violet shades aroud
the base. About the only way to keep the color is to keep the shell in
a freezer. Of course, that makes it difficult to admire or show to
friendd. We have had a number of collectors in Hawaii who had a freezer
dedicated to keeping their shells that fade.
--
Aloha from Wesley M. Thorsson, Editor of Internet Hawaiian Shell News
122 Waialeale St, Honolulu, HI 96825-2020, U.S.A
IHSN URL http://home.att.net/~w.thorsson/index.html