Slabs, Preforms, & Preshapes

Stone slabs, preshapes, and preforms for flintknapping. Below you will find modern saw cut and manually flaked 'blanks' for percussion and pressure flaking. Modern diamond saws create raw slabs, preshapes are slabs that have been trimmed to a shape, and preforms are percussion knapped blanks that are ready to finish.

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Black Obsidian Preshape Slab - 2.25" Shield Profile Small shield shaped black obsidian blank for making arrowheads. Sold individually. 2.25" long, 1.5" wide, .25" thick, This preshaped slab can be pressure flaked as is, or serve as a...
View full details $5.00

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Black Obsidian Preshape Slab - 2.25" Shield - 5 Pack Small shield shaped black obsidian blanks for making arrowheads. Sold in packs of five. 2.25" long, 1.5" wide, .25" thick, This preshaped slab can be pressure flaked as is, or...
View full details $20.00

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Black Obsidian Preshape Slab - 3" Triangle Profile Small triangle shaped black obsidian blank for making arrowheads. Sold individually. 3" long, 1.5" wide, .25" thick, This preshaped slab can be pressure flaked as is, or serve as a...
View full details $5.00

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Black Obsidian Preshape Slabs - 3" Triangle - 5 Pack Small triangle shaped black obsidian blanks for making arrowheads. Sold in packs of five. 3" long, 1.5" wide, .25" thick, These preshaped slabs can be pressure flaked as is, or...
View full details $20.00

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Large Grey Georgetown Biface Preform Long grey georgetown flint blade preform. Ready for notching or further chipping into a dagger. This is from 'old stock' georgetown, a grey variety that is particularly fine flaking. Knapped...
View full details $120.00

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