Petrified Wood - Washington, Miocene Lapis Lazuli and triplets are backed like

and triplets are backed like doublets but also topped with a transparent cover such as quartz

and White Quartz are also mined

It requires long hours of carving

The Neolithic era varies in time span depending on geographic location

They have a semi-translucent white body color with flashes of blue

Petrified Wood - Washington, Miocene Lapis Lazuli and triplets are backed likeFrom ancient Greek meaning "wood turned into rock", Petrified Wood is an unique form of fossilization. In some instances all the organic matter has been replaced by minerals (usually a silicate, such as quartz) during a process called permineralization replacement. However, many petrified wood specimens undergo a unique fossilization process, where silicates bond with the cellulose structure of the wood, thereby preserving organic matter. Regardless