NX56AL0: Group of doubly terminated Quartz crystals (amethyst variety), with very well defined faces and edges, translucent and with an intense deep color, deeper at the ends of the crystal. It is getting ever less common to find specimens from this locality, which was worked for only a brief time.
La Francesa Mine, Villa Rafael Benegas (Villa Benegas), Mina Clavero, San Alberto Department, Córdoba Province  Argentina (2003)

Specimen size: 5.8 × 5 × 4.2 cm = 2.28” × 1.97” × 1.65”

Main crystal size: 3.8 × 2.9 cm = 1.50” × 1.14”