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Petrified wood is probably present in each sediment, that from more recent layers than the devonian ages originates Unusual however are the so-called “Limbcasts” - fossiles of wood, which only as “stone cores” occur. Here in this case the cast is formed by translucent Chalcedony.

In that case the wood was dissolved completely and only the outside shape of the wood was kept complete. Often this happens in connection with volcanic activities (Montana agates - Yellowstone volcanism or Paulina Limbcasts from Oregon - volcanism of the Cascade Mountains). Something similar must have happened also with the Indonesian agatized woods. The exact indication of discovery site is still missing and so no information about the geological connections is present at the moment.