ME47AF3: Irregular aggregate of greatly elongated crystals with a spindle-like shape, most of them doubly terminated with very acute pyramidal terminations. The crystals are brighter than usual for Los Lamentos and have a dark greenish-brown color. These Vanadinites, whose arsenic content is quite higher than usual, are well known as the endlichite variety.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 4.9 × 3.6 × 3.1 cm = 1.93” × 1.42” × 1.22”

Main crystal size: 0.6 × 0.2 cm = 0.24” × 0.08”