Quartz

specimen number:
2063827

location:
Crystal Park, Beaverhead Co., Montana, USA

description:
A beautiful scepter quartz crystal, they had a rich purple to smoky colored. Glassy and gem quality. In great condition.

Crystal Park, located high in the Pioneer Mountains within Beaverhead County, Montana, is a renowned mineral collecting locality famous for its exceptional quartz specimens. The geological setting consists of Cretaceous quartz monzonite and granodiorite intrusive bedrock where hydrothermal fluids filled fractures and cavities, allowing well-crystallized mineral pockets to form. Over millions of years, weathering degraded the surrounding host rock into loose granite sand known as grus, freeing the embedded minerals for easy surface and shallow excavation. Prospectors first discovered the deposit in the 1800s, and the area was later designated by the Forest Service as a public mineral collecting site where rockhounds dig for gem-quality clear, smoky, and purple amethystine quartz. Crystal Park is world-famous among collectors for producing dramatic scepter quartz formations, where a larger secondary crystal cap grew over an earlier primary quartz stem, often showcasing sharp color zoning, phantom inclusions, and striking combination aesthetics.

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