Getting residue out of Ketamine

Hey people that share the same intressted as I do,

Just picked up some Ketamine from a friend. The Ketamine is legit but it has a pinkish color to it. The pink is the result of him being stupid and using a plastic dish. Now, in the Ketamine you can see little plastic stuff in it(really tiny bits). The plastic resedue comes from the plate he used to dry it on.

Any idea how I can make it more clean?

Thank you!

Picture(The dark spots you can see are mostly little plastic bits, really, really tiny.): http://i.imgur.com/LOr5X87.jpg