African Petrified Wood Agate 4mm Round - 15-16 Inch Faceted Top Drill In any case

In any case

the one you receive may look different from what is shown

The description

where copper contributes to blue tones and iron introduces green variations

Stone Type: Petrified Wood Agate

African Petrified Wood Agate 4mm Round - 15-16 Inch Faceted Top Drill In any casePetrified 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.