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Old March 23, 2013, 08:26 PM   #28
thallub
Senior Member
 
Join Date: November 20, 2007
Location: South Western OK
Posts: 2,061
Black blasting powder is used in granite blasting. i own blasting powder in several granulations, including one with grains about 3/8" in diameter.

Making black powder:

http://www.blackpowder.ch/powder/blasting-powder
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