Fluorite

Unknown Owner

Nice locality example for the species with light purple translucent semi lustrous octahedral crystals of fluorite to 2.0 cm in size in a cluster with very little matrix. The specimen comes with a couple of previous labels as shown at the end of the video, including one from Lawrence Conklin.The Mount Antero region, situated within the Sawatch Range of Chaffee County, Colorado, is a world-famous alpine locality for sharp, gem-quality fluorite crystals. Geologically, these specimens occur at extreme elevations exceeding 14,000 feet within a highly evolved, tertiary-age granite stock known as the Mount Antero Granite. The fluorite formed during the cooling stages of this intrusion, crystallizing inside miarolitic cavities and hydrothermal veins along with aquamarine beryl, phenakite, and bertrandite from fluids enriched in fluorine, beryllium, and other incompatible elements. Historically, the presence of minerals on the peak was first documented in the late 19th century around 1884 by prospector N.D. Wanemaker, sparking a localized rush for gems. Mining and quarrying have traditionally been restricted to small-scale, seasonal artisanal surface operations and shallow trenching due to the extreme mountain weather, brief summer accessibility window, and treacherous scree slopes. Hand-mining activity experienced notable revivals in the mid-20th century and again during the early 2000s due to increased interest from mineral collectors and television documentation, with independent prospectors continuing to work active claims on the slopes through 2026. The site remains a classic American locality, especially celebrated for its deep blue to purple octahedral fluorite crystals which are highly prized for their unique high-altitude genetic environment.Lawrence Conklin was a world-renowned mineral dealer based in New York City, widely regarded as one of the most knowledgeable and sophisticated figures in the history of the mineral trade. Operating from his office on 5th Avenue and later from his home in Connecticut, Conklin specialized in "antique" minerals and specimens with significant historical provenance. He was a meticulous researcher and an elegant writer, often publishing articles that corrected historical errors in mineralogical literature. His career spanned over five decades, during which he handled some of the finest known specimens from classic European and American localities, setting a high standard for aesthetic quality and documentation in the field.