You might try D/2 biological solution. We use this all the time on things like this. Here is the link. 

http://www.d2bio.com/?_vsrefdom=adwords&gclid=Cj0KCQjwsZHPBRClARIsAC-VMPD0q-StxQvQUY2XYc4okwSl1ig6LUmqC11rCXds31PaUZut095r4mwaApw1EALw_wcB

________________________________________

From the desk of

Baird Standish

Managing Partner

Facility Specialists, LLC

15 West Highland Ave. Suite E

Philadelphia, PA 19118

Phone: 215-732-7505

Fax: 215-546-9160

www.facspecs.com

On Oct 16, 2017, at 9:48 PM, Anthony Godoy <agodoy4894@gmail.com> wrote:

Hi partners,

What would be the best way to go about removing the mold on this stone? 

 
Visit list archives, subscribe, unsubscribe or change your subscription 
preferences:
http://stoneandtilepros.simplelists.com/sccpartners
 
Start a new conversation (thread): 
sccpartners@stoneandtilepros.simplelists.com

<DSC_0048.JPG>

<DSC_0036.JPG>

 
Visit list archives, subscribe, unsubscribe or change your subscription 
preferences:
http://stoneandtilepros.simplelists.com/sccpartners
 
Start a new conversation (thread): 
sccpartners@stoneandtilepros.simplelists.com