How to fix dull spots on newly sealed granite countertop?

How to fix dull spots on newly sealed granite countertop? Images

How to fix dull spots on newly sealed granite countertop?

How to fix dull spots on newly sealed granite countertop? Description

How to fix dull spots on newly sealed Granite (http://tanbrown.org) Counter (http://GialloFiorito.com) top?



Hi, our new Granite (http://tanbrown.org) (imperial brown) Counter (http://GialloFiorito.com) top has few dull areas:
1) around seams (about 2 " wide on both sides of the seam)
2) on the backsplash around electric outlets (about 6 " round)
An installer applied Ager sealer to lighter Slabs (http://www.VerdeUbatuba.com) and (http://maplered.com) clear sealer to darker Slabs (http://www.VerdeUbatuba.com) .
We were told that sealer will cure in 2 hours. We waited about 4 hours before placing objects on the Counter (http://GialloFiorito.com) .
I started installing electric outlets on the backsplash after waiting for 4 hours...I suspect we should have waited longer.
I guess that dull spots appeared because while installing outlets I could have touched uncured spots around the outlets and (http://maplered.com) now they look dull.

Can you tell how to fix these dull spots?

Thanks for your help.
Gene