What can you tell us about the mostly white one on the left lower side?

Thanks for sharing!

Grainy as in looking like wood grain, not picture quality. :^)

The whitish bead appears to have some form of mineral replacement due to age and environment, calcification maybe? The wood grain appearing bead is a very pretty little ancient agate bead from the Swat Valley

Thanks for posting this it is wonderful. Have beads like the stone beads but nothing like the coral, thanks again.

All my best ............ Danny