Phenakite from Mt Antero, Colorado, USA - image 1
Phenakite from Mt Antero, Colorado, USA - image 2
Updated 5d ago

Phenakite from Mt Antero, Colorado, USA

$1,500.00

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A very choice large colorless translucent semi lustrous grouping of phenakite crystals measuring 2.0 x 1.4 x 0.8 cm in size embedded up on a pegmatite matrix. This is in good condition. One termination is naturally contacted. Very large crystal for the species and locality. This was collected by Nick Golosow around 1976. The specimen comes with a previous label from the collection of Ray DeMark.Mt. Antero, located in Chaffee County, Colorado, is famous for producing fine gemstone specimens from high-elevation granite pegmatites and hydrothermal veins. Formed during the Tertiary period within the Mount Antero granite stock, these deposits yielded exceptional phenakite, aquamarine, fluorite, and smoky quartz, often found in pockets near or above the timberline. Discovered in the late 19th century, the rugged peak quickly became a legendary locality for both miners and mineral collectors who braved extreme weather, steep terrain, and short seasons to extract brilliant, well-crystallized phenakite and associated minerals. Today, Mt. Antero remains one of the most celebrated and active field collecting sites for fine American phenakite.

Product details

SpeciesPhenakite
SizeMiniature
Dimensions4.5 x 3.5 x 3.0 cm
Listed on10/13/2026
SKU2063231
Current owner
3,406 for sale·9 sold

Learn more

Phenakite
Mineral guide
Learn about Phenakite
rare Be2SiO4 boasting brilliant luster, high clarity, and gem-like crystals; forms in pegmatites/miarolitic cavities, prized by connoisseurs.
Phenakite
Regional guide
Phenakite from Mount Antero, USA
Mount Antero phenakite - rare, glassy to translucent crystals from Colorado's high-alpine pegmatites; prized for altitude and its collector appeal.
Locality guide
Mt Antero
Mt Antero, Colorado — a high-altitude gem locality famed for pale to blue aquamarine in alpine pegmatites, with rare bertrandite, phenakite, and striking pocke…