Eudialyte Pin or Pendant in Sterling2. 5"H x 1. 5"W x . 5" D A rare reddish cyclosilicate with striking black inclusions, Eudialyte is the sole gemstone in its crystallographic family. Prized for its distinctive ring structured crystals and primarily sourced from Russia, this uncommon stone is set in sterling silver for a refined, understated presentation. Stone on the bottom image is how it will look worn on a necklace or as a pin. Stone on top also can be worn as a pin.