The stones historically and traditionally associated with Portuguese cobblestone pavement are limestone and basalt. However, there is a variability of materials across the national territory, adapted to the local geology. Hence the use of marble and schist in parts of the Alentejo (Estremoz), milky quartz and schist in the North (Penafiel, for example), or, more recently, granite also in the North. In the archipelagos of the Azores and Madeira, the combination of basalt with limestone designs prevails. In the case of Castelo Branco, for example, fan-shaped laying predominates, with stones generally cubic and arranged to form various types of fans (or scales), even in the white cobblestone pavement.