Goethite with Quartz

specimen number:
2063746

location:
Lake George, Colorado, USA

description:
Prismatic lustrous brown crystal groupings of goethite to 3.2 cm in length coming off of a slightly smoky crystallized shard of quartz. In good condition and complete all around, a floater with no points of attachment. Quite nice for the species. The specimen comes with a previous label from the collection of Ray DeMark.

Located within the Pikes Peak batholith of Colorado, the Lake George area is renowned for its complex pegmatites that formed through late-stage magmatic crystallization. Prospectors and mineral collectors have targeted the region since the late nineteenth century, recovering world-class cabinet specimens from open miarolitic cavities. Among the notable minerals found in these zoned pockets is goethite, which frequently occurs as sharp, highly lustrous crystal groups, radiating clusters, or as delicate inclusions and pseudomorphs associated with quartz, microcline, and other classic pegmatite species.

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