A single large, geometric, important-sized crystal of this rare species; herderite being quite rare in any pegmatite deposit and particularly here. Of all the varieties, the green colored herderites are most rare. Usually to 1-3 cm in size, this beast is 180 grams and is 3 inches (7.5 cm) tall when standing up. It is complete all around the sides as displayed vertically, contacted on back (or, the bottom if you sit it horizontally). From a small find of 2023.