Medium USPS Flat Rate box packed with 12 pounds of our #1 graded and cleaned 3-6 inch Flint knapping Spalls Mix (Texas Flint, Novac, Keokuk, Obsidian & Dacite). Box price includes shipping within the domestic United States.

Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Flint knapping Spalls Mix (Georgetown Flint, Novac, Keokuk, Obsidian & Dacite). Box price includes shipping within the domestic United States.

Medium USPS Flat Rate box packed with 12 pounds of our #1 graded and cleaned 3-6 inch heat treated Keokuk Spalls. Box price includes shipping within the domestic United States.

Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch heat treated Keokuk Spalls. Box price includes shipping within the domestic United States.

Medium USPS Flat Rate box packed with 12 pounds of our #1 graded and cleaned 3-6 inch Black Obsidian Spalls. Box price includes shipping within the domestic United States.

Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Black Obsidian Spalls. Box price includes shipping within the domestic United States.

Medium USPS Flat Rate box packed with 12 pounds of our #1 graded and cleaned 3-6 inch Mahogany Obsidian Spalls with unique wood-like colorful streaks of brown/dark red and black. Box price includes shipping within the domestic United States.

Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Mahogany Obsidian Spalls with unique wood-like colorful streaks of brown/dark red and black. Box price includes shipping within the domestic United States.

Medium USPS Flat Rate box packed with 12 pounds of our #1 graded and cleaned 3-6 inch Dacite Spalls. Box price includes shipping within the domestic United States.

Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Dacite Spalls. Box price includes shipping within the domestic United States.

Medium USPS Flat Rate box packed with 12 pounds of our #1 graded and cleaned 3-6 inch Georgetown Flint Spalls. Box price includes shipping within the domestic United States.

Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Georgetown Flint Spalls. Box price includes shipping within the domestic United States.

Limited time offer for rare oversize material while supplies last. Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 6+ inch 'extra-large' spalls. Click product link to view available stone types. Box price includes shipping within the domestic United States.

Graded for beginners and for our own kit material, these small spalls and flakes range from 2-4 inches in length and include a mix of keokuk chert, heat treated novaculite, obsidian and/or dacite. Medium USPS Flat Rate box packed with 12 pounds. Box price includes shipping within the domestic United States.

Medium USPS Flat Rate box packed SOLID with 20 lbs of small, thick, and odd shaped pieces of Obsidian and Dacite. Great for getting a lot of experience without the high cost of Grade A stone. Mostly small point practice material. Box price includes shipping within the domestic United States.

Medium to large #1 graded and cleaned Texas Georgetown Flint in easy to work spalls. Some of the finest Georgetown we have had the pleasure of offering. This material does not require heat treatment. Sold by the pound (1-2 pieces per lb).

Small to medium spalls and flakes of #1 graded and cleaned Georgetown Flint. Some of the finest Georgetown we have had the pleasure of offering. This material does not require heat treatment. Sold by the pound (3-5 pieces per lb).

Medium to large #1 graded and cleaned Heated Keokuk Chert spalls. Sold by the pound (1-2 pieces per lb).

Medium to large spalls of #1 graded and cleaned black volcanic glass. Famous for it's consistancy. Sold by the pound (1-2 pieces per lb).

Considerably less glass-like than Obsidian, these medium to large Dacite spalls are an all around great volcanic flintknapping stone. Sold by the pound (1-2 pieces per lb).

Mix of two of the most popular types of volcanic flint knapping stone. These small spalls and flakes of Obsidian and Dacite are sold by the pound (3-5 pieces per lb).

Medium to large spalls of #1 graded and cleaned volcanic glass with unique wood-like colorful streaks of brown/dark red and black. Sold by the pound (1-2 pieces per lb).

Small to medium spalls and flakes of #1 graded and cleaned volcanic glass with unique wood-like colorful streaks of brown/dark red and black. Sold by the pound (3-5 pieces per lb).

Graded for beginners and our own kit material, these small spalls and flakes range from 2-4 inches in length. Mix may include: heated keokuk chert, Georgetown flint, heat treated novaculite, obsidian, and/or dacite. Sold by the pound (3-5 pieces per lb).

Uncleaned heat treated Keokuk chert spalls straight out of the kiln. The chert at this stage has not been cleaned of waste like our #1 graded spalls. Large variety of sizes and some odd shapes; uncleaned rock will have some waste. Great practice material for beginners and advanced knappers. Sold in 5lb lots.

These small, super thin Novaculite and Keokuk flakes are graded specifically for pressure flaking practice. 1-2 inch heat treated flakes. Sold by the pound.