Dims: 3.0 x 2.4 x 1.8" (7.6 x 6.1 x 4.6 cm)
Wt: 10.8 oz. (306 g)
Pasto Bueno Mine, Ancash Department, Peru
Scores of thin, dark Huebnerite crystals extend through the crystalline quartz host rock of this small hand specimen. The maximum length that they attain is difficult to determine, but it does not exceed 2" (5 cm). Damage is surprisingly sparse- even the longest and most exposed crystals generally are complete and have intact terminations. Their monoclinic forms have a widely varied quality- some of the crystals are very well-defined, and some are rather deformed- but most have a moderately good form. Their prism faces are heavily striated and their termination faces are generally clear, and all have a bright, vitreous-to-adamantine luster. All have a red coloration, but it is so deep that one can only see it under a bright halogen light or sunlight, and even then it is dim. The quartz matrix consists of hundreds of hexagonal prismatic crystals that have grown off of and around the Huebnerites, and are intergrown with each other. There are very few exposed quartz crystals that are intact, as most intersect with either each other or with the Huebnerites. They are colorless and transparent or milky-white and translucent, though most are rust-stained.