Q.A vendor in our facilty had a lift accident . It toppled over & caused some damage . The batteries landed on a flame cut granite floor & the acid leaked out . For safety reasons ; hours passed before household baking soda was sprinkled on the acid . 25.5 hours later & after machine scrubbing w/ an oxygenated cleaner , we still have visible residue/lighness in the area .

A.Dave-depending on the porousity of the granite you may be able (using a bush hammer or 180 grit honing powder )to remove the damage.Then you may be able to color enhance the stone to darken it even more.

Please feel free to call me at 888-400-4302 for more info.

Stu Rosen