The granite edge that we see the line in in the photograph is curved so that might partially explain the grain mismatch, which is not the problem. The lamination seam area discoloration appears to be not in the
epoxy seam itsself but in the top surface of the bottom piece of granite in the lamination. I was wondering if a coating could have been applied to the top of the granite and when the lamination was formed the top of the granite piece used became the upper surface of the bottom lamination. So we are seeing a darker surface layer contrasting with the rest of the granite
So I would like to know if this is fixable and whether there is anyone in the San Francisco bay area who could take a lookand possibly fix it. I just don't want someone to attempt a risky fix that makes things worse.