Thank you for your comments.
Now the funny thing about the Keokuk I ordered. I had read some where that there is a real nice chert for giving demonstrations (I am not using it for a demonstration I just want something buttery) and I thought it was the Keokuk. I have not been able to find where I read that.
I had been wanting to try the Keokuk anyway and I like how it works. I did discover I had to abrade it like crazy.
There is a lot more types of stone I want to try and I am planing on buying 2 more types in the next month or so. I am going to get some Sonora but I do not know what the 2nd type should be.
I would like some suggestions for the 2nd type of chert/flint that might work like butter if there is one.
So what is everyone's favorite flit?
Thank you for any suggestions.
Tom