| http://www.w3.org/ns/prov#value | - A device for fracturing a hard material, the device being placed in a hole in the hard material, the device comprising:a stemming bar extending into the hole from a point outside the hole; a cartridge base in contact with a free end of the stemming bar, the free end of the stemming bar being located in the hole; and an outer cartridge housing including an explosive decoupled from and spaced from t
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