How can I mold mdma rocks?

[Caputbiz]

I’m looking to turn big mdma rocks into a uniform brick for packing purposes. Is there anyway to do this? I could care less about actually cleaning the mdma considering the mdma is already pretty clean. I would like to not lose as much mdma as you would if you were to wash it but if that does happen so be it. If anyone could help me out it would be a life saver!!!