What can't be repaired?

[FLStone]

I am trying to produce a list of the ten most difficult restorations or impossible methods to do restoration.
For example I had a guy tell me it's impossible to polish green marble without buffing compounds.
Any ideas or maybe other places to look for these difficulties would be greatly appreciated!!

FlStone-

[lensmith]

I'm not sure if this is really un-repairable, but we once put in a set of vanities in Cashmere White granite, and the plumber used something with oil in it when he installled the faucets. A dark ring started forming around the faucets, and spread to a dark ring about 6" in diameter.

The customer demanded replacement tops, and we couldn't find anyone who could remove the stains.

Any ideas?

[Todd]

Len,

I hope you gave the poor plumber a good price on the tops HE had to replace.

[Wags]

From what I know from speaking with Stone Fabricators and reading the stone BB, plumbers putty is one of the worse stains to get. I would assume most plumbers would know this and either not use it or be extremly careful. I bet your plumber doesn't make that mistake again !