Pictures?

pictures

Is this something new or has it been there since it was installed?

Some spots were there during installation and some are new

That could be a chemical reaction with the sealer. Google 'green bloom' and see what you can find. I don't know too much about it, but I've definitely seen it before.

Rust happens when iron gets wt.

is there a way to remove those stains

That looks like a natural oxidation. I'd learn to decorate with yellow.

I have never seen yellow oxidation like this. I really don't think that's what it is. Dayana, I don't know about remedies, but look up green bloom and see if that helps.

Green bloom isn’t yellow. The first stages of rust are often that sickly urine yellow before getting to full blown orange.

When resin, the stuff they suck into stone to make it more suitable for countertops, is subject to ultraviolet light degradation, it turns yellow. How does the sunlight hit these tops please?

Green Designs, I've been looking at stone for 25 years and I have never seen the first stage of rust be yellow-ish green as in these photos. The chemistry/minerology of that does not work out that way. (There is a yellow form of iron oxide called limonite, but it's a secondary product of hydration of the more typical reddish-orange mineral, hematite.) Furthermore, it's not even happening in iron-rich areas of the stone. It's on the felsic parts - the white feldspar and the quartz. It's not rust.

Unless the stone is outside, no UV is getting to it. Window glass blocks UV. But I do agree that a reaction with epoxy is a good possibility here.

Its inside the kitchen and sun shine does not fall on it

Dayana, have you talked to your fabricator? That would be a good place to start. They will know what they treated the surface with and will hopefully have some options for you. Keep us posted!

Wondering how you made out and if you would still do granite after this or if you would do quartz?

I would go with Quartz as its is easy maintenance. the fabricator said it's part of the stone and nothing can be done to remove.

@kel_kat5 - It is a mistake to think that Dayana’s situation is representative of granite counters. Most importantly, the Bahamas White granite she pictured looks like it’s in the family of the Imperial White or Kashmir granites, which is notorious for behaving more like marble and staining easily because it is more absorptive than other granites, I.e. porous. If one is looking for a granite with a white background, check out the granites in the family of Alaska White, White Springs, Bianco Delicatus, and Lennon, which are pretty bullet-proof.

I’ve had different granites in different homes, and none even needed sealing, and were carefree, and we didn’t baby them. There are a thousand granites out there, and they should not all be lumped under the same umbrella.

Quartz is a great choice if you want a more uniform appearance to your counters. There are stories on this forum of Quartz staining, scorching and chipping, and having resin pools. I actually think Quartz is a wonderful choice for counters. But get it for its appearance and beauty, not because you think it is more durable than granite.