Dims: 1.0 x 0.7 x 0.7" (2.5 x 1.8 x 1.8 cm)
Wt: 15.7 g w/ specimen box
Mazapil, Zacatecas, Mexico
Though Boulangerite makes up only a small portion of the mass of this thumbnail specimen, it is still quite visible and easy to study. The Boulangerite rests in rather sheltered areas and so is in excellent condition, showing almost no damage. The largest of these needles does not exceed 0.1" (3 mm), and all are so thin that their form is impossible to study without high magnification. They have the standard moderately dark silver-gray coloration and metallic luster. They line a few depressions on their base, which is made up of a few hexagonal quartz prisms that are intergrown with a cluster of heavily intergrown pyrite cubes. The specimen is hot-glued into a plastic specimen box.