If this has happened after installation, that’s another story.



sorry Stu just confirmed with Michael it is everywhere throughout the house. First and second floor

On 04/27/2022 7:56 PM Stuart Rosen <mail@stoneshine.com> wrote:

I agree with Fred-

Is that installation in a bathroom?

Sent from my iPhone

On Apr 27, 2022, at 2:35 PM, Fred Hueston <fhueston@gmail.com> wrote:

Could be several things.  

1. Just ground in dirt. 

2. staining

3. iron oxidation

test it with some RSR 2000 which will tell you if its iron or not.

On Wed, Apr 27, 2022 at 5:33 PM Tammy Davis <marbleplus@comcast.net> wrote:

Has anyone ever seen this happen with thassos stone?

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