glassy nautilus
... that the fragile shell of the glassy nautilus was once worth more than its weight in gold?
... that the fragile shell of the <b id="mwB2E"><a href="./Carinaria_cristata" id="mwB2I" rel="mw:WikiLink" title="Carinaria cristata">glassy nautilus</a></b> was once worth more than its weight in gold?