Vintage Rare Sterling Silver Blue John Drop Dangle Earrings

Vintage Rare Sterling Silver Blue John Drop Dangle Earrings Length 1.25 inches A rare pair of antique art deco sterling silver and blue john earrings. The earrings are stamped "SILVER" on the rear. The total combined weight is approx. 3.05g and the size dimensions are in the later photos. Blue john is an extremely rare mineral and can only be found in Derbyshire in the UK, it is in fact Britain's rarest mineral