https://georarities.com/product/petrified-wood-and-fossils-for-sale/all-petrified-wood/rare-green-chromium-petrified-wood-6-16g-or-30-85-cts-gw5/
Rare Green Chromium Petrified Wood 4.48g or 22.40 cts - GW7 - GeoRarities
This is green chromium petrified wood. It is among the rarest types of petrified wood in the world. This piece comes from what is thought to be a single...
green chromium petrified wood