I found this... -Stella Here is a link that might be useful: marble stain poultice

In areas open to each other, the granite is all the same - kitchen, family room, butler's pantry and dining room are all the same. All other rooms have different granite based on the color scheme in that room. Only a couple of the rooms have white cabinetry, but I will share several room pics to give you an idea of what we did. I took these pics last week immediately after installation so the countertops are pretty dusty. Kitchen - Golden Sun: Powder Room - Delicatus: Master Bath - Verde Butterfly: Guest House: DD1 Bath - Blue Pearl: DD2 Bath - Black Galaxy: 1/2 Bath: We will also have a different granite for the outdoor kitchen, but that has not been installed yet. Here is a link that might be useful: Our Progress So Far

Personally I don't like to mix metals that much if there is big contrast-- using a copper sink in a small room where you have a nickle shower enclosure would seem to highlight the differences in color of metals no matter what tile you are using... If you want a metal sink would you consider a hammered stainless or pewter metal sink?

FWIW I got a Swanstone counter with integrated sink in white. Its solid white (and I love it - so easy to clean). Bought it at big orange for cheap, after reading so poor reviews for cultured marble (which wasn't that much cheaper).