Tony:
Looks like the white marble with black veins (cant think of the name right now) But if its that stone its got the iron in it, that oxidizes to a orange reddish hue activates with water activited... plus time.
Its just is a bad characteristics of that marble. Kinda like limestone and it hidden holes that pop open as you walk on it. I see it all the time.
One story for the road. A restoration friend of my did an installation of this stone and then couple days later did a scrub cleaning to get it all clean from the installation. He said he came back the next day with these reddish blotches all over the new install.
The stone on my website home page
www.ceisurfacepros.com has a picture of a floor we have done for about 10 years. Two weeks after the installation of it, it developed the same look. We had not even worked on it till they called us to look at it.
We do a Ritz Carlton Hotel bathroom floors, same stone with the reddish orange marks through out.
Fred H. talks about this problem is his courses also.
Hope this helps
Contractor / Fabricator called me. Has a customer with Calcutta Gold that has stained.
It is in a bathroom. Supposedly she has only put her straightening iron on this area. Seeing all the circles I think it might be a chemical reaction. Any ideas?
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Tony Warney
Excel Stone and Tile Care
760-788-9400
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