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Dark Cricles in Granite Countertops?

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Dark Cricles in Granite Countertops? First and Last 06-03-2006
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Posted by First and Last on June 3, 2006, 9:24 pm
I just got new granite counters put in yesterday. They are not even
finished installing them since they have to come back and do the
cut-outs for the faucets.
I just noticed a bunch of darkened circular that don't seem random
enough to be natural. They are all about 3 to 4 inches in diameter and
close to evenly spaced apart.
I didn't notice that in the lighting in the granite warehouse, but they
are clear in the kitchen lighting.
What can those dark circles be and are they something that can be
removed or evened out?
I am not talking about different colors in the grain. I mean circular
blotches where all the colors in those blotches are darker than the
main part of the slab.


Posted by Sacramento Dave on June 3, 2006, 10:44 pm

>I just got new granite counters put in yesterday. They are not even
> finished installing them since they have to come back and do the
> cut-outs for the faucets.
> I just noticed a bunch of darkened circular that don't seem random
> enough to be natural. They are all about 3 to 4 inches in diameter and
> close to evenly spaced apart.
> I didn't notice that in the lighting in the granite warehouse, but they
> are clear in the kitchen lighting.
> What can those dark circles be and are they something that can be
> removed or evened out?
> I am not talking about different colors in the grain. I mean circular
> blotches where all the colors in those blotches are darker than the
> main part of the slab.
>

Sounds like marks from the suction cup on the handles to move the
granite around. Pretty much the same tool glazers use to handle glass. Or
could be from supports on truck racks, same as glass truck



Posted by First and Last on June 3, 2006, 11:40 pm
Sacramento Dave wrote:
> >I just got new granite counters put in yesterday. They are not even
> > finished installing them since they have to come back and do the
> > cut-outs for the faucets.
> > I just noticed a bunch of darkened circular that don't seem random
> > enough to be natural. They are all about 3 to 4 inches in diameter and
> > close to evenly spaced apart.
> > I didn't notice that in the lighting in the granite warehouse, but they
> > are clear in the kitchen lighting.
> > What can those dark circles be and are they something that can be
> > removed or evened out?
> > I am not talking about different colors in the grain. I mean circular
> > blotches where all the colors in those blotches are darker than the
> > main part of the slab.
> >
>
> Sounds like marks from the suction cup on the handles to move the
> granite around. Pretty much the same tool glazers use to handle glass. Or
> could be from supports on truck racks, same as glass truck

If that's what it is, does that go away on it's own in a short rime or
is there something that needs to be done to cleanup the darkened
blotches before the gramite gets sealed?
They are not exact perfect circles with sharp edges that are obviously
from something like a suction cup, but I guess it could be. They are
very similar in size and spacing, but the edges of the dark circles are
a little irregular.
I can't imagine anything "natural" in the granite that would make marks
that regularly spaced out. They don't seem irregular enough for it to
be natural colorings in the stone (in case the granite installer tries
to say that when I ask about it on Monday).


Posted by PanHandler on June 4, 2006, 12:13 am

> Sacramento Dave wrote:
>> Sounds like marks from the suction cup on the handles to move the
>> granite around. Pretty much the same tool glazers use to handle glass. Or
>> could be from supports on truck racks, same as glass truck

> If that's what it is, does that go away on it's own in a short rime or
> is there something that needs to be done to cleanup the darkened
> blotches before the gramite gets sealed?
> They are not exact perfect circles with sharp edges that are obviously
> from something like a suction cup, but I guess it could be. They are
> very similar in size and spacing, but the edges of the dark circles are
> a little irregular.
> I can't imagine anything "natural" in the granite that would make marks
> that regularly spaced out. They don't seem irregular enough for it to
> be natural colorings in the stone (in case the granite installer tries
> to say that when I ask about it on Monday).

Before you sign off on the job, have the installer acknowledge in writing on
the paperwork that you are unhappy with the marks, and agree to correct any
problems as required.



Posted by Newsreader on June 4, 2006, 5:11 am
>I just got new granite counters put in yesterday. They are not even
> finished installing them since they have to come back and do the
> cut-outs for the faucets.
> I just noticed a bunch of darkened circular that don't seem random
> enough to be natural. They are all about 3 to 4 inches in diameter and
> close to evenly spaced apart.
> I didn't notice that in the lighting in the granite warehouse, but they
> are clear in the kitchen lighting.
> What can those dark circles be and are they something that can be
> removed or evened out?
> I am not talking about different colors in the grain. I mean circular
> blotches where all the colors in those blotches are darker than the
> main part of the slab.

Go here:

http://www.stoneadvice.com/forum/viewtopic.php?t=2881&highlight=

and read about a similar problem. Lots of professional stone guys giving
insight on possibles causes & solutions.



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