Yet another beautiful Brazilian stone, Azul Macaubas is like the sky in the form of a granite. With the prettiest blue shade, this natural stone features light and dark streaks of blue. Its rich blue color is made up of a very rare mineral called Dumortierite. Azul Macaubas is ideal for decorating both indoors and outdoors. This quartzite is extremely durable and low maintenance, making it perfect for countertops, floors and coatings.