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Smoky Quartz, Amethyst - image 1
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Smoky Quartz, Amethyst
Smoky quartz and amethyst, 14 cm, from the Pohndorf mine, Toll Mountain, Jefferson County, Montana. Fine crystals of amethyst with smoky or colorless quartz were discovered in Jefferson County, 22 miles southeast of Butte, in 1900 by August P. Pohndorf (1866–1939). The smoky quartz crystals are so heavily included with needles of black tourmaline that they are opaque, but the amethyst is free from such inclusions. Pohndorf reported finding smoky quartz crystals to 3 feet in length (Kunz, 1901).
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The Mineralogical Museum, University of Delaware
Product details
Species
Smoky quartz, Quartz, Amethyst
SizeCabinet
Dimensions14.0 cm
Locality
Pohndorf mine, Toll Mountain, Jefferson County, Montana
Publications
  • Mineralogical Record Mineral Collection University Of Delaware page 27
Added on02/13/2026
Known provenance
Unknown date
The Mineralogical Museum, University of Delaware
Not disclosed—
Species and Locality Wiki Pages
Smoky quartz
Smoky quartz
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