Petrified Wood is also known as fossilized wood and it is crystallized with Jasper, Chalcedony and sometimes Opal, Pyrite or Calcite minerals. Petrified Wood is typically a brown and gray stone with occasional spots of red, yellow and violet formed from by the petrification of primeval trees. Petrified Wood is a considered to be a "stone of transformation," assisting a person to advance to their highest potential. Petrified Wood is used in grounding exercises and to connect to nature. Use Petrified Wood stone to balance the Root Chakra.