Out of flat: I put a couple of precision straight edges on 'em and used the automotive gauges. Over analysis: Probably so; first time around the polishing track. Want it done as well as is possible as the pieces are part of my better half's great grandmother's bedroom suite [which I also have to tou...

It is not clear to me where your rods are located in the installed pieces, but I am guessing that they are in positions where the stone is relatively narrow, like at the front or rear edge of a sink. For what it is worth, might the breaks be in locations under light fixtures? I have seen numerous cr...

I am puzzled by the pits in your Volga Blue, because it is nearly mono-mineralic. Geologically it is an anorthosite, composed largely of labradorite, a calcium-sodium aluminosilicate mineral. Typically its accessory minerals are magnesium- and iron-rich silicates and ilmenite [titanium-iron oxide]. ...

Gents, I must polish 2 old white marble dresser tops, 12-13 sqft total. Conditions range from sub-gloss to coarser-than-honed on the pieces; they also are from 0.003"-0.013" out of flat. Preliminary sanding will have to be done pre-polish. In looking at several polishing products [MB, Samich/Klindex...