I wouldn't dip it as the LOS would get behind the stone and may bedifficult to rinse out. I would use the cotton swab and repeatedlyapply the LOS until the desired effect was reached. Polish off theareas where you don't want the LOS patina and your done.
Sam Patania, Tucsonwww.patanias.com
I would not put the stone into liver of sulfur. marilyn
G'day: dunno for sure, but marble usually contains some iron, and LOScould change that to a grey or black.
Cheers for now,John Burgess; @John_Burgess2 of Mapua, Nelson NZ