- Valentinite, Pyrite
- Miniature, 3.9 x 2.8 x 1.5 cm
- San Jose Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
This specimen is stunning for the species, with unusually distinct, well-formed crystals to 1.5 cm arrayed in an (also unusual) radial cluster on minimal matrix. Usually these are blocky crystals on massive rock. This fine piece, though, is one of the more display-worthy examples of the species I have seen. The leftmost crystal was loose, wiggling, and then came off in handling so is now repaired (as a lock-fit repair perfectly to its original site). The crystals are textbook-sharp in form, and have translucent golden-colored terminations.