San Antonio Mine (San Antonio el Grande Mine), chimenea Cox, level 4, East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua Mexico (2011)
Specimen size: 16 × 9.7 × 6.5 cm = 6.30” × 3.82” × 2.56” Main crystal size: 1.2 × 0.6 cm = 0.47” × 0.24”
