Our Baltic Brown is a Granite stone. Granite is very strong and great for use as a tabletop due to its strength. These tops are 20mm thick. We glue a fixing plate to the underside so that a table base can be fitted that is suitable to work with the size and weight of this top. The edge profile is a bullnose. The stone as a deep dark bottle interior look. Fascinating and interesting natural design within the stone mineralogy.