Granite is the most popular stone type used in countertop applications today. Granite is an igneous rock (formed over millions of years by solidification of magma) made up of several different minerals, including quartz, mica, and feldspar. Marble is a metamorphic rock (rock changed by pressure, heat, and water) predominantly consisting of calcite, dolomite, and crystals. (Onyx is considered part of the marble family.) Marbles and onyxes typically have a diverse aesthetic appeal, accentuated by distinct veining and often bold colors. They are relatively softer than granite. For a variety of reasons, marble and onyx are not recommended for use in kitchens; however, they can be a good selection for bathrooms. Travertine is a calcium based stone. Travertines are very porous and even have holes in the stone. Again, travertine is not recommended for use in a kitchen.
Most are from Brazil, Italy, and India. Our main supplier is Daltile, one of the largest importers of natural stone in the country.