Classic geode lined with bubbly chalcedony sprinkled with brassy pyrite crystals and featuring a “nest” of brassy millerite “hairs” from the famous locality of Halls Gap in Lincoln County, Kentucky. Superb condition. Measures 2 x 2 x 1 inches ( 5 x 5 x 2.5 cm). Mounted in acyllic display box. The millerite does not show up well in the photos, but is much more impressive in person.