Granite is an igneous rock, which means it was once molten and formed as it cooled deep within the earth. Minerals within granite typically appear as small flecks throughout the stone, once creating a “speckled” look. Other types have veining similar to marble. Granite is a dense grained, hard stone. It can be highly polished or finished in a variety of other ways. A broad spectrum of color is available. Best used for high traffic areas such as kitchens. Granite is very heat, stain and scratch resistant.
Marble has both a scientific and commercial definition. Scientific marble was once limestone that achieved metamorphosis from intense pressures and high temperatures within the earth. This altered its crystalline structure and introduced other minerals that produced the valuable colors and veining. Commercially, any stone capable of taking a polish (with the exception of granite) is known as marble. This includes travertine, onyx, serpentine and limestone. Best used for low traffic areas such as guest bath, fireplace, etc. Marble is heat resistant but will stain and scratch (scuff) over time.