African Petrified Wood Agate 6-7mm Table Cut Cube Bead - 15-16 Inch R1755 currently believed to be due

currently believed to be due to the presence of a copper-based mineral such as Malachite or Azurite

and as such is a particularly soft stone

pattern and finish of the original DZI beads

its variations seem to depict landscapes and other images

” Most deep red Carnelian has been heat treated to darken the beautiful orange and red tints that are created by iron oxides in the stone

African Petrified Wood Agate 6-7mm Table Cut Cube Bead - 15-16 Inch R1755 currently believed to be duePetrified 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.