Black Galaxy is used for countertop, bathrooms, vanity tops, polished finish is the most common surface finish to bring out the best colours of granite Black Galaxy granite is also suitable for flamed, honed, leather and brushed finishes.It is hard, durable and moisture resistant with a minimum maintenance cost. But when used as a flooring in busy areas, it can be scratched from road and pavement dust and that will have an effect on any surface.