Arsenic-bearing Vanadinite (variety endlichite)

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”