Pietra Serena is a characteristic stone of Tuscany, and particularly of the Firenzuola basin, in the province of Florence. A very uniform grey sandstone, medium grain, sometime spotted with black or pearly points. It is a compact stone, very porous on the surface.
By virtue of its natural elegance and versatility it is often employed for interiors decorations, both private and business settings, and for both traditional and modern furnishings, frequently matched with other materials, also not stony ones. It is also recommended for exteriors, as it shows its centenary employ in covering of facades, squares and boulevards. Many are the examples of the old tuscan city centres (like Florence, Siena and Arezzo).
Already known by Etuscans and Romans (Tempio di Marte in Florence), it was definitively legitimise by Brunelleschi, with the Spedale degli Innocenti, San Lorenzo Curch and Santo Spirito Cathedral, just to give few examples (only in Florence). So doing Brunelleschi instructed a line ricalled many times by the architecture of the Renaissance. Nowadays it was chosen by Jobs for Apple Stores pavings.