You need a grinder (a device that breaks up your weed so you don't have to) that has a keef collector on bottom. Keef is what those crystals are more commonly called. I'm pretty sure there is no medicinal use in keef, but who could ever know?
And yes, Lenny, if you smoke that stuff you'll be floating in the clouds feelin pretty relaxed.
Ahh I see. Well just gotta find some way to dispose of those crystals without selling.