I have Cambria Torquay and use Clorox wipes on them all the time. I use them to wipe down my counters, then follow it up with Method granite polish from Target (LOVE that stuff!) There is absolutely no streaking, haze, residue, discoloration, etc. I frequently put hot items straight onto the countertop, but try to use a trivet or pot holder most of the time. I'm not super worried about it, but I figure it doesn't hurt to use a little extra caution. I was given the option of having the sink cut-out finished into a cutting board, so I used that for a long time as a tester of sorts. It has held up to all stains and temperatures I've subjected it to. I was advised by the installer to use a it of straight acetone for any stains that couldn't be removed with regular cleaner or by scraping with a razor blade. That was four years ago, and I have yet to find anything that didn't wipe right off. And that's saying something, because I have young children. I absolutely love my quartz counters and would buy them again in a heartbeat.

We have had almost the exact same issue with our corian. The builder wouldn't even come to check it only went by the pictures we sent. Then blamed it all on something "very hot" had to do that! I can tell you now, it did not. There is also a large dip or warp over the dishwasher. When we pulled it out there is absolutely no heat barrier or insulation to protect the corian. The installer also never sealed the sink basin. Which we found out the hard way when our sink overflowed. The installer/builder takes no blame Won't even come to look or tell us what we can do. There is a ten year warranty on the corian, we've been fighting this for over two years now. The ten year warranty will be up in September of this year. What can we do???

We have walnut counters. Generally I don't do anything special but ever now and then I'm cooking something that I know will spatter far and wide. I have one of those silicone mats, I just use a small size, and put it on the counter closest to the burner I'm using. Probably don't need it as the wood cleans up like a dream. Since they are so heat resistant you can also use it as a safe landing pad. https://www.amazon.com/AmazonBasics-Silicone-Baking-Mat-2-Pack/dp/B0725GYNG6/ref=sr_1_1_sspa?crid=1BCXMBC9DO1RF&keywords=silicone+baking+mats&qid=1554409889&s=gateway&sprefix=silicone+%2Caps%2C159&sr=8-1-spons&psc=1

Then there is this article - that had me leaning toward quartzite ... http://usenaturalstone.org/definitive-guide-quartzite/ The Houzz article above has me leaning towards Quartz. : ) I am of the opinion that that are good features in both. Quartzite can take heat and you cannot set a hot pot on Quartz. Quartz does not stain as bad as Quartzite since Quartzite is a natural stone. Quartzite has to be sealed. I don't think Quartz does. I am thinking it is a toss up The one thing I am worried about is the part about the citrus and etching Quartz I have read a lot about. I use lemons a lot and we all cook around our island so I don't have full control of watching it all the time. . I would love to hear opinions from folks who have either. Have you had any issues with either choice?