DESCRIPTION: A rare pair of antique art deco (c1920s) sterling silver and genuine blue john earrings. Blue john is an extremely rare mineral and can only be found in Derbyshire in the UK (not far from me), it is in fact Britain's rarest mineral. The earrings are stamped "SILVER BRITISH MAKE" and the screws open/close well. They weigh a combined total of approx. 6.79g and the size dimensions are in the later photos.
