Sorry for the delayed response-
Wow that sounds calcified efflorescence which will be tedious work to remove.
If you are doing this with a hammer and chisel please post some pics.
While its possible to form from the surface the question you want to answer is there moisture below .
Use a moisture meter which will give you an indication of whats under the stone-
If you have moisture under the stone it will present some questions.

On Sun, Apr 2, 2017 at 6:15 PM, Barry Raduta <barry@diamondstoneandtilecare.com> wrote:
Hello Partners and thank you in advance for any help you give me.  I have an outdoor project coming up on outdoor travertine patios that have a buildup of a salty substance on the first floor.  They have copper rain gutters that must overflow  and the mixture of the rain water , copper and the calcium of the travertine causes  a "mound of a course salt substance" to form.  Sorry I have no photos.  I was going to use a hammer and chisel at an angle to break the deposits from the travertine and then use diamonds to smooth the surface.  I was wondering if a moderate acid solution should be used on the deposits first to help break them down?  My goal is only to go as high as an 800 diamond-encrusted pad since it is outdoors.
Thanks,
Barry
Diamond Stone

--
Thank You,
Barry V Raduta
Diamond Stone & Tile Care-South
Stone & Tile Pros
 
Visit list archives, subscribe, unsubscribe or change your subscription 
preferences:
http://stoneandtilepros.simplelists.com/sccpartners
 
Start a new conversation (thread): 
sccpartners@stoneandtilepros.simplelists.com




--
Regards,
Stu Rosen
201-446-1200
www.stoneshine.com
www.mbstonecare.com