travertine
aragonite
Eisenblüte
marriage. Pit unit / Three crowns and honor
Drei Kronen und Ehrt
marriage. Pyrite mining in Elbingeröder complex
Rubeland; Elbingerode; geogr. Upper Harz
Mine closed since 1990
Size: about 20 x 5 mm
Height: about 84 mm
Weight about 80 grams
you can clearly see the stalactite structure