Get a small blowpipe and blow out a bubble like you are making shards. Put your thumb over the end of the pipe (important) and dip the hot bubble into a bowl of cool water. If you dip it slowly but steadily the glass will break off in small pieces in the water. No dust! You can then crush it up further under water and strain it for different sizes.
Robert
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Robert Simmons
(Former) Director for Bead Donations
Beads of Courage, Inc.
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