stains on white quartz
I have a white Cambria quartz countertop. I know it is sensitive to heat. I noticed several stains that are under a silicone hot pad that I keep near the cooktop. the countertop is pure white and the stains are also whitish with borders around the stain. I have placed a lid from a pot on the hot pad as I cook so am wondering if somehow the hot steam from the lid or drops of the boiling water could have damaged the countertop under the hot pad? Is this possible?
Otherwise, I am at a loss as to what has caused these stains. It was hard to take a pic to attach.