Old piece – hard to get anymore.
Pigeon blue chalcedony and siderite xx – ferruginous spar
Siderite is a valuable iron ore with up to 50% iron content.
Hüttenberg in Carinthia – Austria
Mining of the coveted Noric iron from 300 B.C. to 1978
Weight: 306 g
Dim.: 12 x 8 x 6 cm