Petrified wood, wood stone, water stone, jasper, chalcedony, mineral, agate, quartz

This is a stone weighing nearly 30 kilograms, collected from Mt. Io in Toyama Prefecture.
Is it silicified wood intertwined with green and agate?
It's a type of stone I haven't seen often.
It has been left outdoors, so there are cracks in some places, but it can still be fully appreciated.
How about adding it to your collection?