African Petrified Wood Agate 10mm Round - 15-16 Inch New Diamond Cut Rounds Many of the earliest gem

Many of the earliest gem traders did not realize that these yellowish stones were actually different materials

and handcrafted character to finished designs

It forms when Quartz and Feldspar crystallize in radial aggregates within other silica-rich stones

It can range in color from pale pink to deep rose or even rusty red tones depending on the concentration of Manganese

including shiller — a sometimes iridescent bronzelike luster — in some stones

African Petrified Wood Agate 10mm Round - 15-16 Inch New Diamond Cut Rounds Many of the earliest gemPetrified 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.