Archaeologists say the underwater area will be thoroughly searched for any other artifacts or parts of the prehistoric ship that may have survived.Image credit: Naples Superintendency for Archaeology, Fine Arts and Landscape
Knapping rock could cut you wide open.
Wood in sea water is eaten by "shipworms" or Teredo worms. They are wood eating marine bivalve molluscs.
They are considered a delicacy in some places and are called "naked clams".
Dragon glass from Westeros
Chiseled Obsidian would make a great name for a garage band.