Hello. I posted a question a few weeks ago about my granite counters but now I am finding a new problem. As I was wiping them down, I noticed crystals on my towel. Seems as my counters are releasing these crystals along with tiny flecks of some of the dark, rougher areas. Is this normal ? Has anyone dealt with this ? Is there a way to repair this or am I dealing with low quality granite ? Thank you for your help.