Re: Zam polish
I have used both Zam & Fab-u-luster (That last one may be misspell) on a number of soft stones such as petoskey stone and it does fabulous job on Malachite. All I do is apply some from the stick direct to muslin buffing wheel. watch the heat it will build up fast.
Hope that helps
From Bob Place - April 22, 2013 at 21:30:21