Fluorite with Quartz

specimen number:
2063738

location:
Huayllapon Mine, Pasto Bueno, Pampas, Pallasca, Ancash, Peru

description:
Light green highly translucent sharp octahedral crystal of fluorite measuring 3.5 cm across set perfectly up on a muscovite crystal rich matrix with crystals of quartz. From the early 1990s, this is in great condition and comes with a previous label from the collection of Ray DeMark.

The Huayllapon Mine, situated in the high Andes within the Pasto Bueno District of Ancash, Peru, is famous both as a major historic tungsten producer and as a legendary mineral locality. Geologically, the deposit consists of quartz-rich hydrothermal veins hosted within granodiorite intrusive rocks and surrounding metasediments, formed by late-stage magmatic fluids. Commercial mining focused heavily on hubnerite and scheelite for tungsten, but collectors world-wide value the site for yielding some of the finest mineral specimens ever recovered from South America. Exceptional crystals of deep red hubnerite, lustrous fluorite octadrons, brilliant pyrite, quartz, and silvery rhodochrosite were preserved by miners throughout the twentieth century. Although large-scale commercial operations eventually diminished, specimens from Huayllapon remain prized centerpieces in public museums and private collections for their remarkable crystal aesthetics, color contrast, and historical importance in Peruvian mineralogy.

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