@F i s h y @Eagle_Steve thank you for all your help.
19 little bottles of super glue.
A couple of notes. Find the biggest contact point when gluing pack with sand and super glue. Next fill in gaps and glue. This peice is about 13 lbs and created from 15lbs of rock. Chisel and hammer works well for making smaller peices. I used a shallow box lined with plastic (plastic bag that the rock comes works well) this helped keep sand and glue in one area.
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