Sorry, but you’d be surprised how many people don’t bother to do any basic research before asking questions. What kind of “working” are you contemplating? You could cab it, I presume, though it’s very soft. I wouldn’t consider it a candidate for faceting at all. My copy of Vargas’ “Faceting for Amateurs” is in another state right now, so I can’t check, but it’s possible it’s listed in the appendix.