RT Journal Article SR Electronic A1 Rybařík, Václav T1 Character and origins of building stones in Prague medieval monumentsDer Charakter und Ursprung der Steine in den Prager mittelalterlichen Denkmälern JF Staletá Praha YR 2011 VO 27 IS 1 SP 27 OP 41 DO 10.56112/sp.2011.1.03 UL https://staletapraha.cz/en/artkey/pha-201101-0003.php AB This article discusses the character and origins of the natural building stone used in Prague medieval buildings and sculpture. The authors review the rock types of building stones from a geological and petrographical point of view; the quarry sites in Prague and the sites of imported stone, along with their occurrence in Prague monuments.