Indonesian Irregular Petrified Wood Top with Custom Steel Base

Its age is indeterminate, which for petrified wood seems the honest answer.

This irregular petrified wood top with a custom steel base comes from Java, Indonesia. Over great spans of time, minerals replace the wood of a buried tree and turn it to stone, and furniture makers have learned to leave such slabs close to their natural shape. The polished top is black, shot through with cream and tan streaks, while the rough edges still read as bark. A plain dark steel cylinder rises from a round plate. 29 inches long and 25.5 high.

The base is the newer of the two, by some margin.