>In reference to the calcie/aragonite topic, I am wondering
>if the presence of calcite in some shells is responsible
>for their "misbehavior" in bleach, or if it is the
>presence of more organic matter in them. I have noticed
>that the inner layer of some Pectinids is very touchy to
>the beach and consequently watch them carefully. Other
>shells can stay indefinitely in bleach without damage.
I have never had a pectinid (Chlamys, Zygochlamys, Mesopeplum)
damaged by bleach. Yet.
--
Andrew Grebneff
165 Evans St, Dunedin 9001, New Zealand
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Seashell, Macintosh, VW/Toyota van nut