Anatase
Pierre Château, La Léchère, Albertville, Savoie, Auvergne-Rhône-Alpes, France
A crystal bipyramidal truncated by wide base, of anatase, black. Collection and photo of Gianfranco Ciccolini. Nikon D610, bellows, Schneider Kreuznach 28mm; f: 4. Focal using 5.6