Seamstone
From Rice Boy Wiki
Seamstone is the Acircan name for the bright red glowing rock found in the Seam in Grenth. It seems to hold some significance for the War-Men, as they flock to the Seam to battle, and one is seen wearing a necklace made from a piece of seamstone.[1] Seamstone has also been valued by other peoples, although it is unclear what use they have had for it.
