Curt's Cherts

Curt's Cherts Providing stone for knapping since 1998

I have some heat treated Alibates slabs available. I tried marking them with a number, length, and price but it is hard...
08/21/2026

I have some heat treated Alibates slabs available. I tried marking them with a number, length, and price but it is hard to see in the pics. They are basically $2 per inch, plus shipping. The first and second pic are thicker percussion slabs and the rest are pressure flaking slabs.

If interested send me a message on messenger. Thanks.

I have 3 small flat rate boxes of heat treated Texas Edwards chert spalls. Most are heat treated Edwards stromatolite b...
08/19/2026

I have 3 small flat rate boxes of heat treated Texas Edwards chert spalls. Most are heat treated Edwards stromatolite but each box has 1 or 2 pieces of heat treated Fort Hood GBG Edwards chert. Each box has at least 3 pounds of material. The bifaces are examples I have made from this material and are not included.

$35 each shipped in the USA

$50 for 2 shipped together.

$70 for all 3 shipped together in a medium flat rate box.

Message me if interested. Thanks

I have some heat treated Alibates bifaces available. Glossy and easy to work. Just need to be pressure flaked to finis...
08/14/2026

I have some heat treated Alibates bifaces available. Glossy and easy to work. Just need to be pressure flaked to finish. They are all around 2 to 2.5 inches.

$8 each plus shipping

5 or more for $7 each plus shipping

15 or more for $5 each plus shipping

Shipping is $14 in the USA in small flat rate box. I can ship internationally but will have to calculate the shipping cost depending on location.

Message menon messenger with a screenshot of the ones you want circled.

Thanks

I have 2 lots of obsidian slabs available. Each lot has at least 75 inches of slabs in it. I believe the black ones ar...
08/11/2026

I have 2 lots of obsidian slabs available. Each lot has at least 75 inches of slabs in it. I believe the black ones are daysite and some or all of the mahogany ones are triflow. They are all 1/4 inch thick. Some do have some cracks that will need to be trimmed around. Many can be trimmed into 2 or more points/ blades. Each lot will be shipped in a medium flat rate box so they will be better protected.

$100 each shipped, or both shipped together for $175.

Message me if interested. Thanks

I have a medium flat rate box with 20 pounds of raw Jefferson City/ Roubidoux chert from Missouri topped off with 5 poun...
08/06/2026

I have a medium flat rate box with 20 pounds of raw Jefferson City/ Roubidoux chert from Missouri topped off with 5 pounds of John's Valley chert from Oklahoma. Both material work well raw. The Jefferson City/ Roubidoux chert can be heat treated around 500 to 600. Some of the lighter colored John's Valley chert can be heat treated around 450 to 475. But both work well raw. Bifaces are examples I have made from this raw material and not included.

$145 shipped in the USA.

Message me on messenger if interested. Thanks.

I have a couple 20 pound medium flat rate boxes of heat treated Texas bull gravel chert. These are river gravels that h...
08/06/2026

I have a couple 20 pound medium flat rate boxes of heat treated Texas bull gravel chert. These are river gravels that have tumbled many miles down the rivers and bashed against each other. They will have minor fractures under the cortex but the inside is pretty solid. A couple may have a little deeper cracks but they can be worked under or around pretty easily. This material is pretty tough raw but the heat treating has made them glossy and easy to work. One of the things I really like about this material is the wide variety and color of the chert since they are fluvial gravels that have come from eroding the Edwards plateau and the many different layers of chert contained there. Plus, many have gone through mineralization which can change the colors and patterns. The spalls are from testing the cobbles and show the gloss, but are not included.

$85 each shipped in the USA.

If interested, message me on messenger.

Thanks

SOLD I have 20 pounds of raw Missouri Reeds Spring/ Pierson chert topped of with a 4 pound mix of heat treated Coastal P...
07/23/2026

SOLD

I have 20 pounds of raw Missouri Reeds Spring/ Pierson chert topped of with a 4 pound mix of heat treated Coastal Plains chert, heat treated Edwards chert, and a spall of heat treated Cotter chert.

$145 shipped in the USA

Message me if interested. Thanks

I have 4 chunks of heat treated Tecovas jasper/ chert available. They are a little over 5 pounds. These pieces are thi...
07/11/2026

I have 4 chunks of heat treated Tecovas jasper/ chert available. They are a little over 5 pounds. These pieces are thicker chunks that are good for slabbing.

Points are examples I have made out of Tecovas and not included.

$80 shipped

1 BOX LEFT I have 2 medium flat rate boxes of Missouri Reeds Spring and Pierson chert available. Each box has 20 pounds...
07/09/2026

1 BOX LEFT

I have 2 medium flat rate boxes of Missouri Reeds Spring and Pierson chert available. Each box has 20 pounds of stone. This material works well raw but I have heat treated some samples around 450 with good results. Bifaces are examples I made from this raw material and are not included.

$125 shipped

Message me if interested. Thanks

I have some Texas Edwards Rootbeer chert available. Will make 3 to 5 inch points. Works well raw. Can be heat treated...
07/08/2026

I have some Texas Edwards Rootbeer chert available. Will make 3 to 5 inch points. Works well raw. Can be heat treated around 350 to 400 after spalling/ bifacing and will get even more glossy and easier to work. Bifaces are examples I have made from this material.

$125 for a 22 pound medium flat rate box shipped in the USA.

Or

$200 for a 36 pound large flat rate box shipped in the USA.

Message me if interested. Thanks.

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Fort Worth, TX

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