Calcite with Jamesonite inclusions,Bakerite - Herja Mine (Kisbánya), Baia Mare (Nagybánya), Maramures, Romania
 Crystal group of curved calcite crystals colored black by inclusions of jamesonite on a matrix with bakerite.
 A classic collection piece from the now-closed but famous mine. Specimens like this are rarely found on the market.