Emplaced on a limonite matrix along with a thin crust of green, botryoidal mimetite are dozens of bi-pyramidal, lustrous, waxy wulfenite crystals to 1.0 cm in length. The crystals are akin to a porcupine's quills. As you can see there are only a few broken crystals, perhaps 1 in a dozen, and it still shows dramatically. This is a very unusual crystal habit, historically and worldwide, for the species. Bipyramidal wulfenite in crystals of this size are not known from many locales (although recently Ojuela produced a number of them). This specimen was on loaned exhibit in the University of Arizona Museum for over a decade until my purchase of this collection in 2008. Comes with custom lucite base already made for the specimen.