Main Discussion Area > Flintknapping

Glass thickness.

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dylanholderman:
ask around at furniture stores they might have glass table tops that have been chipped or cracked that they'll let go for penny's. also see if your city has a re-store all kinds of stuff might turn up at them.

Mafort:
Probably try goodwill too

JackCrafty:
The 1/8" thick tiles are will yield a 3/4" wide arrowhead if you're really good. That's a 6 to 1 width to thickness ratio. Most knappers should shoot for 4 to 1 to be on the safe side.

Clear glass comes in much better sizes and quality but it gets old very quick.

The best and cheapest glass I have found is bottle bottoms from carbonized water. You can find them in various shades of green and blue.

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