🔎 UNIDENTIFIED Slabbing Flint

ToddsPoint · May 10, 2024

This was my first time slabbing flint. I put in a good sized nodule of Wyandotte chert from Harrison Co IN, aka IN hornstone. I had to trim it down to fit in the vise. My new saw will cut a slab 6” X 5”.

After taking off a wide slab of cortex I was greeted by a bunch of cracks.

I cut a slab 3/8”, which is the right thickness for flintknapping.

The red lines are cracks, the green area looks solid. I put my knapping billet on it and the cracks failed of course. I managed to edge the good area and there should be a nice point in there.

ToddsPoint · May 12, 2024

This is Holland flint from Dubois Co IN. It’s Pennsylvanian in age and was in the tailings from the Energy Supply coal mine. The mine is shut down now. This piece has quite a few cracks but I kept it to use as samples. The tailings have been reclaimed now and it’s about impossible to find.

ToddsPoint · Wednesday at 5:41 AM

I opened up this nodule of glacial flint. I’d love to know the source of this stuff. It appears to have a chalk cortex like true flint from England. Most pieces we find are small. This one is the biggest piece I’ve ever found.

tamrock · Wednesday at 7:03 AM

How fun

ToddsPoint · Saturday at 5:43 AM

I had this small 2” rock and cut a slab from it using the 6” trim saw. I thought it was quartzite but I think it’s flint or chert of some type. It was really hard to cut. It has some nice banding and should polish well. It reminds me of an AZ sunset.

ToddsPoint · 2024-05-19T16:16:55-0500

I slabbed a nodule of flint from Henry Co IA today. I got this nod from a rock quarry that closed because there was too much flint in their limestone and there were too many flat tires on county gravel roads. It has unusual bumps of flint on the top (or bottom?) of it.