Petrified Wood Agate 12x25-40mm Graduated Top Drilled Points - 15-16 Inch Garnet In rare and highly sought

In rare and highly sought after specimens

gray and purple

Obsidian is formed when felsic lava cools without crystal growth

It is one of the most rare and sought after forms of Agate

The description

Petrified Wood Agate 12x25-40mm Graduated Top Drilled Points - 15-16 Inch Garnet In rare and highly soughtPetrified 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.