Travertine Stone Damage How to restore

[Johnla]

Does anyone have any experience of removing stains from Travertine stone tiles?

Travertine stone has been used for a fireplace in my house and they dont appear to have been sealed. It looks like some ordinary abrasive household cleaner has been used to clean the tiles.

This fireplace has a wood burming stove so it looks like this cleaner has done a lot of damage on the tiles. I dont intend to use this woodburner so I am looking for a permanent solution to cleaning these tiles then sealing them.
Does anyone have any idea what best way to go about this? I have tried oil soap but it didnt work . Would it be best to use an abrasive rather than a chemical cleaner ?
Any help would be greatly appreciated

 

[Johnla]

thanks it does help. It has been impossible to remove this stain and it was most definitely put in by someone who didnt know what they were doing .Travertine belongs near water like a bathroom setting not a fireplace.