Well they do look like chert, but I can assure you that they are agate since most of them all come from a big piece of crazy laced agate I bought from a mine. I broke them down a bit. Although the only thing that was surrounding the agate was some pieces of brecciated jasper.
In the picture I shown as a reply to my thread, there are a lot more rocks since I decided to go with the idea of adding rocks. So I added what I could find. So in there, there's agates, brecciated jasper, quartz, smoky quartz, orange Calcite and some Sodalite.
None of it is chert to confirm, I do know and can clearly identify by myself all the rocks in there. As they show lots of characteristics of the rocks I've listed above. Plus, that those we're all separated from the beginning and never was planned to be together.