You are purchasing the exact item described and pictured. As a natural product, irregularities in form and condition may occur, which should not be considered as defects. Therefore, we strongly recommend carefully reviewing the provided images!
Name:
Crystal system:
Calcite → trigonal
Quartz → trigonal
Sphalerite → cubic
Chemical composition:
Calcite → calcium, carbon, oxygen
Quartz → oxygen, silicon
Sphalerite → iron, sulfur, zinc
Location:
Clausthal-Zellerfeld, Harz, Lower Saxony / Germany
Size of the mineral:
Length: 7,5 cm
Width: 5,5 cm
Height: 4,9 cm
Weight:
- old collection -