We have a verity of mixed flint, chert, jasper and other stone generated from the napping process which is great material for rock tumbling. This material can include stone like Mookaite, Root beer chert, Georgetown flint, Amythest sage, tiger chert, hornstone, Georga Coastal, and many more.
Flintknapping
Flintknapping Stone – Flintknapping traditions
The Art of Flintknapping - Freshwater Reporter
Flintknapping Tools: Traditional & Modern Flint Knapping Tools
Flintknapping Tools - Museum of Stone Tools
Flintknapping Stone - Spalls, Flakes, & Raw Rock
Flintknapping Workshop – Center for American Archeology
The Art of Flintknapping - Freshwater Reporter
1377 - Flint Knapping Odd Gravel and Other Goodies
I bought 2 rock tumblers when I was drunk. : r/RockTumbling
Stone Tool Craftsman Show Flintknapping Contest Gallery