Silver

specimen number:
2262323

location:
Aspen, Pitkin Co., Colorado, USA

description:
A sheet crystalline native silver. Nice for this classic locality. The specimen comes with an antique label as shown at the end of the video. This dates to pre-1958.

The Aspen mining district, located in Pitkin County, Colorado, was one of the most productive and high-grade silver-producing regions in the United States. Geologically, the district is situated along the western flank of the Sawatch Range, where intense faulting and structural deformation associated with the Laramide Orogeny created favorable conduits for mineralizing fluids. Hydrothermal solutions deposited extensive replacement ore bodies within Paleozoic sedimentary formations, specifically targeting the contact zones of the Mississippian-age Leadville Limestone and the Devonian-age Dyer Dolomite. These complex ore bodies consisted of rich argentiferous (silver-bearing) galena, tennantite, and native silver, associated with barite and carbonate gangue minerals. Historically, prospectors first crossed the Continental Divide to discover outcropping silver minerals in 1879, triggering a rapid influx of miners and the establishment of the town of Aspen. Early surface quarrying quickly evolved into highly capitalized, deep underground shaft operations during the 1880s, including legendary mines such as the Mollie Gibson, Smuggler, and Compromise. Production boomed until the Silver Panic of 1893 and the repeal of the Sherman Silver Purchase Act caused the market price of silver to collapse, forcing many operations into sudden bankruptcy. Although some consolidated corporate mines managed to continue underground extraction through the early twentieth century by targeting lead and zinc byproducts, large-scale industrial operations steadily contracted and permanently ceased by 1953, allowing the area to transition into a renowned winter resort.

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