Okay, everyone. I think I might have found a solution from a really great stone repairman. I did a patch test on my counter, and it worked. I am now doing 2 more patch tests. You make a poultice using Poultice Plus by Miracle Sealants and instead of using water to make the poultice, use Zep Industrial Purple Degreaser as the liquid. I had previously tried other poultices that did not work. I left the poultice made with the degreaser on for 48 hours. It was covered with saran wrap taped down with painter's tape. I hope this information helps other people as I was about to rip out my quartzite and start over.
Q