Seems to be stained 
What have you tried
Maybe hone a tile and try a poultice - maybe assume it’s a oily hair or body lotion. 
Start simple and test
Paper towel and bleach on just one tile
How porous is that material?

Sent from my iPhone

On May 30, 2018, at 12:34 AM, Blain Haeg <> wrote:

Your thoughts on this discoloration? It occurred about 3 weeks ago and is not improving. The customer is not offering any suggestions on what caused it...he believes that the maid service caused it, but they are not owning it. I got a first hand look today. It doesn't appear to be etch marks, as they are darker than the stone & the reflectivity & gloss has not been impacted, when looked at up close.
Blain Haeg
Gold Standard Floor Care
512.257.3070 office
512.750.1242 cell

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---------- Forwarded message ----------
From: <>
Date: 2018-05-29 23:23 GMT-05:00

Blaine - here are the photos per our discussion. Many thanks

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