Do not seal again please. In this situation, the sealer is not on your side. I'm guessing it's the oil from the avocado making the stain. If so, I'd soak a paper towel in acetone, cover it with Saran Wrap, and tape the edges to avoid evaporation. Give it a day or so please.

Will that eventually eat away at the sealant?

would nail polish remover work?

Most nail polish remover sold these days is not pure acetone ...

Is this normal for this stone? I’m honestly surprised and afraid to use it! Cutting out cookies on our table instead of the island like usual 😞

Acetone based nail polish remover will probably work. Let's hope it does eat through the sealant which is now trapping the stain.

What's the name of the stone? Some quartzites are indeed porous. Some aren't. I'm sorry that's happening to you! I can imagine your disappointment.

I was told it was Bianca superior. (I Picked it the day they received it and it wasn’t labeled, but they stand by that label).

I haven't heard of that one, but the naming practices are fast and loose (and irritating!). Hopefully you can get the stain out and a better sealer can help prevent future problems. Good luck!

Got acetone from Home Depot. Wish me luck!

PLease keep us posted.

Be patient with it and allow it to dry after removing the plastic. If it made progress, it may take another application.

Counter guy came and removed it. BUT, he resealed all the counters and it came back 😫

It is fainter but still there. I hate these counters. Looking into silicon mats to always put under stuff i used to just do on the counters. No more red wine at my house 😞

If the stain is still there he did not get it out completely and should not have resealed.

Poulticing can take several times to remove completely but if progress was made, keep doing the same process until fully removed. You should not have to baby the counters. When sealed properly, just clean up spills as they occur. Leaving a spill that can stain overnight can stain most surfaces. Sealers are intended to HELP prevent staining but there is not a replacement care. Just clean them after using them and I think you will be very happy with them.

I sure hope so. I’m afraid to use them and getting OCD about cleaning and etching still shows up

So, since this seems to have been the case (resealed before completely dried? Or removed-he said counters get darker when sealant applied but he was surprised it came back). Do I just work on it again and hope we get out from under new sealant?

Had Corian had the consistent and pervasive staining problems that so many natural stones suffer, it would have been suffocated in its crib 50 years ago.

Oh, but it's pretty. It's shiny. And you're in love. Or you were until this bad boy showed his real colors.

My friend has told me all my heart ache and impracticality has made her gain appreciation for her corian. I had never even heard of quartzite and it took one person mentioning it to me 😫

Glad I have my out of style granite- invisible seam and never stains.

you might try rubbing the stain with a paste made from baking soda and water. I have used this to remove stubborn red wine stains on quartz.

Anne, Corian had it's weaknesses too. Back to your stone.

Seems your counter guy was a little eager to apply the sealer before the stain was removed. Try using the acetone to work the area of stain (towel or non-abrasive pad). You're trying to remove what sealer you can. Sealer is in the stone, not on top so allow time to sit. Then make another batch of poultice and poultice until stain is removed. Then after it has been removed, apply sealer to the area but not before. Since sealer has been applied, it may take longer for the acetone to penetrate the stone but stay with it.

Maybe this will help. Watch video. Poultice process

Anne- I’m having the same trouble with my quartzite- Lavezzi.
It’s so frustrating- I feel like I can’t even use my island and counters because I’m afraid of staining.

"Corian had its weaknesses too."

Maybe, but catastrophic staining was never one of them.

kris G: I hear you. I continue to learn to live with to try and enjoy my stone. Even do my best to accept the stains (husband just recently left something clear but oil based on and stained-I used acetone and it did lift some. But eek!! ). We now use silicone mats under everything. And I only plate meals at the table now. But, even as careful as I am, and quick as I am to clean if something drips, it still can stain/leave a Mark (ie transferring raw bacon to oven pan, liquid dripped, I immediately wiped and it was set). I know no one would notice but it’s hard that I do. I try to no longer be hyper vigilant about it, but, my kitchen has never been clean like this! Haha. Sorry and hopefully you can find a good sealant and some grace

I have Taj Mahal quartzite and I recently acquired a stain:(