Dims:2.0x1.4x0.8" (5.1x3.6x2.0 cm)
Wt: 0.8oz. (23g)
Centenniel Eureka Mine, Juab cty., Utah
Cast like a pinch of brownish-yellow flour, minium crystals cover the impure marble host rock of this specimen, and occur in the many cracks and crevices. Almost all of these crystals are microscopic. However, in a crevice on the back of the specimen is a tiny crystal that, while showing some damage, reveals the tetragonal crystal form of the species. A loupe is necessary to observe this crystal.