7.5" Rare, Green, Chromium-Rich Petrified Wood Slab - Arizona

In the 1970's a very small deposit of green petrified wood was discovered near Winslow, Arizona and quickly mined out. As this deposit was collected out nearly five decades ago, samples of this material are tough to come by, particularly larger pieces. This rare wood gets its color due to the presence of around 2% chromium within the chalcedony which replaced the wood. It will also act as a natural hydrometer, changing color based on the amount of humidity in the air. The higher the humidity, the darker it gets.

This is a 7.5" wide polished slab of this rare wood. It has been polished on both sides and comes with an acrylic display stand.