A pietra serena, or Florentine stone, is associated with the historic town center of Florence Italy. The stone is a grey sandstone with little to no graining. Today it is often seen in wall and floor tile. (It was picked by Steve Jobs for the Apple stores). It has a long history, and was found in Renaissance friezes and chimneywork. It was revived again in the Edwardian era when a cleaner lighter "less fussy" style was desired for architectural ornament.