African Petrified Wood Agate 8mm Large Hole Faceted Round - 8 InchPetrified 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.

It was used in the Egyptian Book of the Dead

silicon dioxide

5 cm (5 3/8 in)

See below for more information on the unique pattern

and was prized in ancient times for the ultramarine dye derived from it

It’s attractive blue-green provides a unique color to the mineral world

Mined in Hubei China

5x2 Inches / 38x51mm / 3

It is found in rare pallasite meteorites believed to have been formed 4

At that time yellowish gems were called "topaz" in many parts of the world

Its soft chatoyancy is reminscent of the moon's light

" is like the deep blue evening skies often seen above deserts and winter landscapes