Pollone Mine, Pietrasanta, Apuan Alps, Lucca Province, Tuscany, Italy
Thumbnail, 1.8 x 1.6 x 1.2 cm

A full thumbnail specimen featuring a robust crystal showing a broad termination, that is complete all around the top. It is contacted on the left side and back, but this does not show on the display face. Overall, it is very three-dimensional, and impressive for the chalcocite-like stark symmetries of the crystal shape (which I believe to be twinned).