Petrified Wood Rough - $3.00 to $3.50/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.
Large Petrified Wood Rough - $3.00/pound
These large sawn pieces of petrified wood are for display purposes. The typical fracturing makes these pieces a bit of a challenge for cabochon cutting. They could be polished to make bookends, or left just as they are to serve as fine specimens.