Goethite

specimen number:
2354217

location:
Lake George, Park Co., Colorado, USA

description:
Fine cluster of lustrous brown prismatic goethite crystals, the largest measuring to 2.0 cm in length. Complete all around with no points of attachment and in good condition.

Located in the southern Front Range of Colorado, the Lake George area is renowned for its Proterozoic Pikes Peak batholith geology, featuring complex miarolitic cavities within granitic rocks that formed through high-temperature magmatic and vapor-phase crystallization. The region has a rich history of recreational and commercial mineral collecting, drawing enthusiasts from around the world to prospect its famed pegmatites and vugs. It is particularly celebrated for producing world-class mineral specimens, most notably lustrous, iridescent, and sharply formed goethite crystals, often occurring as pseudomorphs or standalone metallic rosettes alongside smoky quartz and amazonite.

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