African Petrified Wood Agate 5x8mm Large Hole Faceted Rondelle - 8 Inch Rondelle Faceted AA Grade composed of hard calcium carbonate

composed of hard calcium carbonate

where copper contributes to blue tones and iron introduces green variations

found only in the Dominican Republic

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An orthoproxene mineral

African Petrified Wood Agate 5x8mm Large Hole Faceted Rondelle - 8 Inch Rondelle Faceted AA Grade composed of hard calcium carbonatePetrified 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.