AmmoliteW
Ammolite
ByssusW
Byssus
Cephalopod inkW
Cephalopod ink
ClamW
Clam
CuttleboneW
Cuttlebone
HoragaiW
Horagai
Mollusc shellW
Mollusc shell
NacreW
Nacre
Opaline glandW
Opaline gland
Operculum (gastropod)W
Operculum (gastropod)
PearlW
Pearl
SeashellW
Seashell
Shell gorgetW
Shell gorget
Shell jewelryW
Shell jewelry
Shell purseW
Shell purse
ShellcraftW
Shellcraft
Snail slimeW
Snail slime