These three rocks are what we like to call almost agates. We have a mossy Chalcedony that never really made it to plume agate status, we have a white chalcedony and quartz nodule, and we have a banded chert which might be a toffee coloured banded agate but I'm not sure enough to call it that.

These three rocks were in the tumbler polishing for a month. The quartz is the least polished.