of the major irritations when it comes to pounding rough out of
boulders is seeing that perfect garnet go flying off into the
rubble pile. If you have a nice sized garnet attached to a
pound chunk of rough, it makes sense to reduce the size of the rock
attached to the garnet. Enter CA glue.
If the garnet is not embedded well into the rough, I got into the habit of applying some high viscosity CA glue to the base of the garnet. Let it sit for half an hour or so and then resume pounding the rough into a smaller, more manageable sized chunk. Odds are the garnet will stay in place.
Sometimes the garnets break loose from the rough anyway and a little CA glue can put them back in their place. The thick, gap filling CA glue is the glue to use.