This andorite is from the San Jose Mine at Oruro City, Cercado Province, Oruro, Bolivia. This mine is a large silver-tin operation that is now mined for the recovery of mineral specimens. It contains 71 different minerals including andorite and zinkenite. Both are sulfides that contain the elements Ag, Pb, Sb, S and Pb,Sb, S respectively. This specimen consists of a complex tabular andorite crystal that hosts prismatic zinkenite crystals along its top edge. It measures 28 x 19 x 10 mm.