Dims: 1.0 x 0.7 x 0.4" (2.5 x 1.8 x 1.0 cm)
Wt: 17.1 g w/ specimen box
Mazapil, Zacatecas, Mexico
A bed of matted Boulangerite crystals rests on the crystalline pyrite base of this small thumbnail specimen. These needles do not exceed 0.4" (1.0 cm) and are in fair condition, as a considerable number of them appear to be crushed. Their monoclinic form is impossible to study without magnification. All have the standard moderately dark silver-gray coloration and metallic luster. The pyrite base is made up of several very warped, intergrown crystals, most of which are incomplete. The specimen is mounted in a plastic specimen box.