Removing rust from marble

[jay44kay]

I have a marble windowsill in my kitchen and I left a paint brush on there to dry, unfortunately it has left a rust mark. I have tried Jif, thinners and paint brush cleaner, all to no avail.
Any ideas would be helpful
Thanks

 

[JohnD]

I don't think you can use an acid rust remover as it will eat the marble.

You'll probably need an abrasive cleaner to grind away the stained surface. It may have soaked into the marble so this may not be easy

 

[Zampa]

Try some bleach

 

[crazycanuck]

try CLR rust and lime remover test in corner area first
crazycanuck

 

[JohnD]

We don't have that over here.

But a product that dissolves lime will also dissolve marble.

 

[jlacd]

I remember from my school Chemistry lessons..... Oxalic Acid's what you need mate!

Fech knows where you get it, though!

Check this out:

http://www.factsfacts.com/MyHomeRepair/RustStains.htm