Field trip at the type locality of the new tourmaline supergroup mineral dutrowite at Fornovolasco (Apuan Alps). Back, from left: Mario Verole, me, Peter Bacik (Comenius University Bratislava, Slovak Republic). In front, from left: Andreas Ertl (Institut fuer Mineralogie und Kristallographie, Universitat Wien, Austria), Darrell J. Henry (Louisiana State University, USA), and Barbara Dutrow (Louisiana State University, USA).
An interesting new finding of sulfur crystals from the Monti Livornesi, almost two centuries after the last known specimens, reveals some intriguing geological issues...