Took a day and broke it down to about 80 lb pieces. There are a
couple of manufacturers of similar material and they will all break
a rock in short order without fractures except in the areas between
the holes. On mine though it weighed about 4 tons and turned out to
be worthless about 3 inches in. Glad yours turned out better. Want
to part with a few pounds?
This looks like an interesting material, it seems to be like
drilling a blast round, except without the dynamite.
There is another mining technique, called pre-splitting, that uses
primacord and drilled holes in a sequence. Presplitting can produce
a finished surface over a 100 foot granite wall; with care,
accuracies of +/- 2 inches can be achieved. however, it is a blasting
technique, so do not try it at home.
Need a few pounds? sure, contact me off list
Mark Zirinsky, Denver