Nancy,

This color form is indeed caused by a constant intake of iron oxide. In my
year
on Guam (two decades back), a local dive shop owner ('Hap' Chapman) had
several
"Golden" Tiger cowries which he had collected alive from the wrecks in Apra
Harbor,
including the 'SMS Cormoran' and 'Tokai maru'.

Bob Dayle (a.k.a. makuabob)
http://www.cowrys.org

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