Nice Find there, Ken! That ought to last you awhile.
And I agree with what knap_123 said. Looks like the coastal plains chert I've been
collecting from the Savannah River just south of Augusta, but yours is much
whiter in color. I have to 'dry it out' before I can actually cook it or else it will
crack up in the fire when heated. A few days next to a wood stove or buried under a
few inches of sand in a pit fire ought to do it.
I see a LOT of bonfires in your future.
Joe