What's That Rock?Petrified wood
Wood turned to stone. Minerals, often quartz, replaced the original tissue so tree rings and bark are still visible.
How to identify Petrified wood
- Visible wood grain, growth rings or bark pattern
- Heavy and hard compared with real wood
- Does not burn or rot
Often confused with
Is Petrified wood valuable?
Common pieces are inexpensive. Removing it from public lands is often illegal; check the rules.
Typical retail prices
Rough$10–40per pound
Polished piece$10–80each
Typical retail ranges in US dollars, compiled from public dealer and marketplace listings in October 2026. Real prices vary widely with quality, size and origin. This is general information, not an appraisal.
What changes the price
- Pattern and color: vivid colors, clear growth rings and crystal-filled centers cost more
- Polish: finished slabs, spheres and bookends cost more than rough pieces
- Size: large pieces are heavy and rare, and shipping adds to the price
- Collecting rules: removing it from public lands is often illegal, buy from legal sources
Uses
- Display, tabletops, jewelry
Care
Safe to wash.
Identifying a stone from a description or a photo is an estimate. Many stones look alike. Ask an expert or a gem lab before you buy, sell or rely on an identification.
Updated October 2026