Petrified Wood (Rainbow Wood) Rough from Arizona - $3.50-$7.00/lb

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.
Petrified Wood Cabochons
Example of a Petrified Wood Cabochon

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