hello i have a black marble top around my sink in the kitchen which has got a white water/limescale stain around it. i have tried limescale removers and they just don't work unfortunately...anyone go any advice????

Marble is porous so you have to be careful. Lemon juice or vinegar might work but don't leave it on for more than a minute or two before rinsing and drying, and I'm not sure whether that would be advisable for black marble anyway. Why not put your question to Kim and Aggie on the thread at the top of the home page? Good luck!