[free_life]

Interesting, but instead of a stationary press arm if you had a moveable externally controlled press arm with different shaped heads you could mold spinel as you wanted like pressing fingers into clay and produce custom large pieces of spinel or other minerals with this process.

[Red Badger]

If the press has flat plates, the spinel will come out flat. "But if I have a ball and socket joint, put the powder in there, I end up with a dome shape," says Sanghera, "so we can make near net shape product that way."

The possibilities are endless............