We also noted in the article:
When granite is used as a countertop, shelf, or fireplace surround very little care is necessary to maintain the inherent beauty and finishUnlike other types of natural stones, granite doesn't require all that much maintenance. You can be sure to enjoy your granite countertops for a long time as long as periodic cleaning and maintenance is done.
Read the entire article: "Granite and Marble - The Advantages of Using Natural Stone for Countertops and Flooring."