I spin the right piece 180 and done beautiful colormatch. If you got it for a deal out of scrap yard then you could have had some issue somewhere.

Scientific reaction between more than likely tile adhesive and calcium deposits in your White Ice granite. Which is a great choice btw. I kinda like the blue. You could just add a few more blue areas with some of that dye.

In my honest opinion seeing its Verde Butterfly it would be rather cheap to replace. If it were mine and I didnt replace it i would put some flex seal clear on the bottom around sink and fill the fischer with black sharpie and superglue or gorilla glue and apply sealer it should last another 15 year...

Im in Atlanta but will travel for the right price. I love the Jonquil granite or Normandy I cant see it that well.