African Petrified Wood Agate 8mm Large Hole Round - 8 Inch Large Hole Beads Onyx is a black and

Onyx is a black and white banded Chalcedony

White Howlite is named for Canadian mineralogist Henry How

It is named for its strikingly beautiful swirling patterns of parallel lines

protection against negativity

which receive their color from trace amounts of chromium

African Petrified Wood Agate 8mm Large Hole Round - 8 Inch Large Hole Beads Onyx is a black andPetrified 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.