playlist thumnail

Petrified Wood!

4 videos
Updated 1 month ago
Petrified wood forms after a tree trunk becomes covered by wet mud composed of fine sediments or volcanic ash. Water keeps the wood from decaying quickly, and the mud provides silica that gradually replaces the wood's cells with quartz, opal, or chalcedony (all are forms of silica).
  1. Piece of Petrified Wood!
    0:20
  2. Petrified Wood!
    0:20
  3. Petrified Wood?
    0:15
  4. Cool Banding!
    0:20