I agree with Fred just be careful-we have run into "quartzite" that etches and also some that are very soft.Seems to be alot of exotic stones out there.They don't always cooperate with you so be prepared to bring different pads and polishing methods. Always best to ID the stone and see what you can find out about it.Even better to be able to get a spare piece. On site experiments are not always the best choice.--On Mon, Jul 16, 2012 at 4:06 PM, Fred Hueston <email@example.com> wrote:
AdamFirst if it a true quartzite it should not etch..Especially if it is honed.. So I would approach it this way.1, Try polishing the etch out with a standard marble polishing powder2, If this doesn't work than try starting with a 400 grit diamond and bring it up till you achieve the hone3, If its true quartzite than treat it like granite
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