African Petrified Wood Agate 6mm Round - 15-16 Inch hps_03272025 Sardonyx is sometimes treated to

Sardonyx is sometimes treated to bring out its reddish tones

Emerald and Heliodore -- and is often cut to highlight its chatoyant qualities

Red Garnet is the most commonly known type of Garnet

but rather a dark variety of Carnelian

This lava rolled across the landscape

African Petrified Wood Agate 6mm Round - 15-16 Inch hps_03272025 Sardonyx is sometimes treated toPetrified 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.