Reliquary Monstrance with a Tooth of Saint John the Baptist (1433) - Catholic Stock Photo
This reliquary uses the form of a miniature Gothic tower. It makes an elaborate architectural frame for a transparent rock-crystal vessel holding a relic that is identified as a tooth of Saint John the Baptist by an inscription along the base of the reliquary. Rock crystal was highly prized in the medieval Islamic world. Considered a precious stone, it was used to create a number of luxurious secular objects, including this vessel, which was probably originally intended to be a container for fragrant oils.