Black granite has almost become the de facto standard for
kitchen tops but spills and stains will be more visible on dark color countertops.
Black countertops may have problems with water stains and leave water
spots… especially around the main sink.
So you have to apply best way to clean, polish and prevent
As per Vaastu, black granite should not be applied in Kitchen, as the black granite represnt Shani and Fire represent Sun. How, they will live together.