
What is this yellowy gunk and how do I get rid of it?
Leathered quartzite. Not yet cut or installed, went to see my slab today and under the inside lights I noticed this yellow stuff, I hadn’t noticed it under the natural light outside where the slab was when I chose it initially.
Update: the yellow is only in the deeper crevices and it definitely doesn’t look like part of the stone. Unfortunately it doesn’t seem like I can add more photos for reference.