Australian Opalized Wood and Arizona Petrified Wood Rough
Arizona Petrified Wood (Rainbow Wood) Rough -
$3.00 to $5.00/pound
Petrified wood is agatized replacement of fossil wood. It cuts and polishes like agate. So, it takes a fine polish with cerium or tin oxide, but will also polish well with diamond. It is common for this material to have fractures. Mohs hardness 7.