Bright and lustrous, deep red to magenta, radiating erythrite needle crystal clusters nicely set on a gossan matrix plate with the RARE botryoidal, brown, cobalt oxide heterogenite from an UNCOMMON Mexican locality - the Sara Alicia Mine, San Bernardo, Sonora, Mexico. This is a choice specimen for this locality. Old material ex Gary Hansen collection 3.3 x 2.5 x 1.1 cm