This beautiful hand-polished petrified wood slice is sourced from Madagascar and has an elegant metal display stand. It has a fantastic pattern with vibrant brown, yellow, and orange hues. Fossilized petrified wood, which is also known as agatized wood, forms when a tree has died and silicon dioxide forms in place of the wood - that degrades until there is no wood left, only quartz. All of the organic matter becomes replaced by minerals, while much of the original structure, such as tree rings, is retained. The rainbow of colors is produced by impurities in the quartz, such as iron, carbon, and manganese. Most petrified wood on earth can be from 50 to 500 million years old.