African Petrified Wood Agate 7x8mm Faceted Round Nugget - 15-16 Inch hps_07302026 The shell is often found

The shell is often found naturally polished with a green or brown spiral on one side and a white "eye" on the other

It displays a visual property called “pleochroism

It was highly prized in ancient cultures and associated with many positive properties

It was referred to by Native American tribes as the blood of Mother Earth

African Petrified Wood Agate 7x8mm Faceted Round Nugget - 15-16 Inch hps_07302026 The shell is often foundPetrified Wood Agate is formed from the petrifaction process of primeval trees over the course of many years. Petrification occurs when the wood is covered by sedimentary rock, as waters loosen and decompose the organic elements and replace them with silicate substances, while maintaining the wood's original structure. Preservation is enabled by a lack of oxygen.