Scuff/stain on granite

I just discovered this on my granite countertop. Has a rough and dull texture and appears to be perhaps something liquid that was put on the countertop and left a buildup. It is almost impossible to remove by scraping. Has a rough finish. Trying to determine what it is and how to get rid of it. The surface is generally only used for eating, setting down plates of food or groceries. Any cleaning products or caustic substances would have been set down, sealed in the container. This is the bar in my kitchen.