A stunning Arsenic-rich Arsenian Pyromorphite of the best orange color, with curving and typical crystals for this style, though with insane luster to them. For some reason, the addition of a bit of arsenic into the crystal growth changes the habit and produces these ball shaped clusters. This has a drapery of such crystals elegantly perched on matrix! An old piece from the 1980s, ex Richard Kosnar collection, and one of the finest in size class.