“Aggregate of heulandite-Ca crystals of an olive green color more accentuated on the outside of the crystals to become brownish on the inside. At both ends, two aggregates of white gooseecreekite. All on a matrix consisting of small white quartz crystals. Collection and photo by Gianfranco Ciccolini. Nikon D750, bellows, Scheider Kreuznach Componon 150 mm; f: 5.6. Focal using 8. ”