9 mai 2015
Non-nacreous Scallop Pearl, Pectinidae sp., Sea of Cortez, near Baja California Peninsula, Mexico
Non-nacreous Scallop Pearl, Pectinidae sp., Sea of Cortez, near Baja California Peninsula, Mexico. Estimate: US$ 2,500 - 3,500 ( €2,200 - 3,100) . Photo: Bonhams. A scallop pearl is a non-nacreous calcareous concretion produced by any member of the pectinidae...