9NV66T0: Group of cubic crystals with echeloned growths on some of their faces and very well defined geometrical color zoning, deep violet in the inner crystal and more bluish on the external areas. The sample is from material compiled for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, regarding the different pockets as well as the dates of the finds. A classic, currently very difficult to find.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)

Specimen size: 6.2 × 4.3 × 4.5 cm = 2.44”

Main crystal size: 1.2 × 1.1 cm = 0.47”