Rock Identifier
Tumbled banded stone, possibly petrified wood (Likely silicified wood (SiO₂-rich fossil wood); identification is uncertain from this view) — fossil
fossil

Tumbled banded stone, possibly petrified wood

Likely silicified wood (SiO₂-rich fossil wood); identification is uncertain from this view

AI-generated identification · may be incorrect

Polished, rounded specimen with brown, cream, and dark parallel bands. If petrified wood, it is mostly microcrystalline quartz, Mohs hardness about 6.5–7, with a vitreous-to-waxy luster; the visible striping may preserve wood grain.

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Physical properties

Polished, rounded specimen with brown, cream, and dark parallel bands. If petrified wood, it is mostly microcrystalline quartz, Mohs hardness about 6.5–7, with a vitreous-to-waxy luster; the visible striping may preserve wood grain.

Formation & geological history

Silica-rich groundwater can replace or fill buried wood, preserving its structure over geological time. The photograph does not reveal enough detail to determine its age or confirm fossil wood.

Uses & applications

Tumbled specimens are used for collecting, display, and small decorative objects or jewelry.

Geological facts

Petrified wood can retain growth rings and cellular structure despite being replaced by silica.

Field identification & locations

Look for wood-like grain or growth-ring patterns across multiple surfaces; a close view of the ends would help distinguish it from banded agate or another tumbled stone. Alabama’s region includes abundant sedimentary rocks, so the locality alone does not confirm petrified wood.

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