Dipterocarpus species ornament, Petrified wood (6.88") from Indonesia aragonite mineral with traces of other minerals

with traces of other minerals that contribute to its unique coloration

A smoky quartz crystal with unique dark hues

And for another informative paper about Daohugou area follow this link

Fossil discoveries suggest it had a global distribution

and was considered one of the best-preserved impact craters on Earth

Dipterocarpus species ornament, Petrified wood (6.88") from Indonesia aragonite mineral with traces of other mineralsSize: 6. 88"= 17,5 cm (1,9KG)Location: IndonesiaAge: Miocene (~23 to 5 million years ago)Condition: Polished Dipterocarpus petrified wood from Java offers a fascinating glimpse into the geological history of the region and the ancient forests that once thrived there. Petrified wood is a type of fossilized wood where organic material is replaced by minerals, typically silica, over millions of years. This petrified wood is found within sedimentary rock