Permineralized Woodfrom Zwenkau, Leipzig, Germany. Approximately 4 in x 3 in.
Permineralization is the first step in petrification. The wood is tens of millions of years old but has t has not completely petrified. Also called mummy wood, it is still soft and will still burn. The exterior of most of the wood from this location is also covered in sparkling druzy quartz crystals.
