Now that right there is a hot-damn "band" or "seam" or "layer" of AGATE if'n I ever seen one! A separate formation in the chert! That's a dang agate. Told you there was more agate in Georgia. More chert in SC. 
Great pictures, Thank you. That is a very well defined specimen of agate in the chert. Just one of the thousands of reasons to take a closer look at this rock! I would guess that seam is sedimentary and not a fossil, but there are lots of fossils in that chert.
Some outcrops are known to be more fossiliferous than others.

Here's a link to an archaeology article with lots of good information about the different cherts from different spots in Georgia. You can skim over the archaeological stuff, but a good reference to look at when you have time.
https://archaeology.uga.edu/sites/default/files/2021-12/uga_lab_series_21.pdf

I have a 365.