Calcite (Soetwater, South Africa)
Soetwater, calvinia, Northern Cape, South Africa. 40mm x 20mm.
From the very same site that produced the incredible prehnite epimorphs as well as quartz with prehnite, one also came across these odd little calcites. All are hollow little specimens making them quite different from what one normally sees in calcite. Packed shipping weight +/- 70gr.