We just moved into a new house and have white quartz countertops. Today I used bon ami to get rid of some stubborn coffee ring stains, and though it worked to remove the stains, the areas where I cleaned can be seen (hard to see in photo below, but big white circle lighter than rest of quartz). I’m hoping I didn’t etch my new countertops. Any tips on remedies? Is it possible those areas are just cleanwe than the rest of my countertop?