|Cobden/Dongola is a nodular chert whose deposit lies in
Southeastern Illinois. It is of good quality and a large percentage is
heavily banded. These characteristics make it a favorite with
flintknappers. The deposit itself is a small one and this chert is rarely
seen for sale. Nodules that produce slabs in excess of 5" in length
can be considered large. The slabs I'm offering here are from my
keeper flint stash and are the cream of the crop from many years of
cutting this flint. They will only be offered for a limited time. About
80% of the material has multiple concentric rings. The colors can run
from olive green, gold, up through several shades of blue/grey. The
pics give a good representation of banding and coloration.
Interchangeably it will be offered as a mixture of slabs and mid-stage
bifaces due to the nature of the raw material. Longer lengths are
occasionally available but are uncommon.