How do I kill off GSP

[neoh]

I think GSP is nice to look at! Why don't you just cut it off and sell it off?

[hillbillyreefer]

Put the infected area outside n -40c for a couple days. Lol.

It cleaned up the piece of rock nicely.

[Craigdillman]

you can easily scrape it off the rocks as it gets close to the sps, i usually use a razor blade and cut it off and if you'd like glue it to a rock and sell it as a frag