13.8" Petrified Wood Slab - Nicaragua (Rare Location)
Here is something you don't see every day, it's a rare slab of Miocene aged petrified wood from Nicaragua. The slab measures 13.8 x 8.6" and is nicely polished on one side. It comes from a collection which we recently purchased a lot of material from. We have a few other slabs from of Nicaraguan petrified wood from this collection, but that's the only material we've seen from there.
Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. All of the organic matter becomes replaced by minerals, while much of the original structure such as tree rings in retained. For this to happen the wood needs to be buried in an environment both low in oxygen (preventing decomposition) and with flowing, mineral-laden water. The coloration is due to the various minerals that are present during fossilization. For example red colors are due to iron compounds, greens due to copper, etc.