Definitely cut this one!

The rock shown in this image has a banded appearance with red, brown, and possibly some lighter or grayish bands. This pattern is characteristic of a type of rock called "banded iron formation" or BIF, but it could also resemble the appearance of certain types of jasper, particularly when it has a banded or layered structure due to different mineral compositions or oxidation states. Here's a breakdown of what it could be:
1. **Banded Iron Formation (BIF):** These are distinctive units of sedimentary rock that are almost exclusively of Precambrian age. They are composed of alternating layers of iron oxides and iron-poor chert, often showing a variety of colors from red to brown to black depending on the oxidation state of the iron.
2. **Banded Jasper:** Jasper can sometimes form in layers or bands due to variations in mineral content during its formation. The red color typically comes from iron inclusions, and the banding could be due to changes in the deposition environment over time.
3. **Agate:** While less likely given the color, some agates can have a similar banded appearance but are usually more translucent or have a wider variety of colors due to different silica deposition environments. Given the rock's rough texture and the color pattern, it's more likely to be a form of jasper or an iron-rich sedimentary rock like a banded iron formation.