Agatized wood nodule!

Based on the image, the specimen you’ve provided does appear to have characteristics consistent with agatized wood (also known as petrified wood). Here are some observations and reasoning:
Color and Patterns: The specimen shows bands of orange, brown, and white, with some darker inclusions. These colors and banding are typical of agatized wood, which forms when wood is replaced by silica (agate or quartz) over millions of years. The orange and brown hues often come from iron oxides, while the white areas could indicate quartz or chalcedony.
Texture and Appearance: The surface has a somewhat translucent or glassy look in some areas, which is characteristic of agate or quartz. The layering and fibrous patterns also suggest the original wood grain has been preserved and replaced by mineral matter, a hallmark of petrified wood.
Context: Agatized wood is commonly found in areas with volcanic activity or where silica-rich groundwater has interacted with buried wood, such as in parts of the southwestern United States (e.g., Arizona) or other fossil-rich regions. If you found this in such an area, it further supports the possibility.
However, to be certain, a few additional factors could help confirm:
Hardness: Agatized wood is typically very hard (around 6.5–7 on the Mohs scale, similar to quartz) and won’t scratch easily with a knife or fingernail.
Weight: It’s denser than regular wood due to the mineral replacement.
Location and Geological Context: Knowing where it was found could provide clues, as agatized wood is specific to certain geological formations.
While I can’t perform a definitive analysis without physical testing (like a scratch test or examining it under a microscope), this specimen strongly resembles agatized wood based on its visual characteristics.