Fat Jack Mine
The Fat Jack Mine dates to 1880. We collect smoky amethyst scepters there and occasionally find stolzite — a lead tungstate mineral. We have owned the mine since June 7, 2025.
History
The Fat Jack Mine sits in Arizona’s Bradshaw Mountains near Crown King. It was established in 1880 and was originally worked for lead, silver, and gold.
Today, our focus is mineral specimens, especially smoky amethyst scepters. We also keep an eye out for the occasional stolzite crystal.
We became the owners on June 7, 2025 and continue careful specimen recovery at this historic locality.
Geology
The Fat Jack Mine is situated in Precambrian metamorphic rocks of the Bradshaw Mountains, where lead-zinc-silver mineralization occurs in oxidized zones along fault structures.
The mine's smoky amethyst scepters formed in quartz veins and pockets. We also watch for rare stolzite (PbWO₄) — a lead tungstate that can appear as tabular or dipyramidal crystals in the oxidized zone.
We are still learning what the locality has to offer as work continues.
Inquire about Fat Jack minerals
We collect at the Fat Jack Mine ourselves, so we can share material from the locality as it becomes available. Get in touch if you would like to talk about it.