Normally, one associates huebnerite from Peru with thin slender crystals perched upon quartz. But this specimen has large, lustrous, blocky, black, crystals, to 2.5 cm in length. This specimen is quite different from most other huebnerite specimens I have seen from Peru. It was a small pocket found in the 1980s if I recall. In person, it is much more impressive for the stark 3-dimensionality! 4.0 x 2.9 x 2.6 cm