Go on a Mining Adventure and Be a Rock Hound for a Day

The Morefield Gem Mine is a unique experience for children and adults alike. The mine is a great introduction to minerals and mineral collecting at a real mine.


The Morefield Gem Mine is one of the few operating mines in the United States where collecting is allowed on a regular basis. The mine is a great introduction for anyone, any age, who wants to find rocks, minerals, and gems and learn to identify them. No less than 10 minerals species can be found on any day, and with experience, time, and depending on what is being mined underground, more of the almost 80 mineral species occurring in the Morefield pegmatite can be found.


The mine is a world-class amazonite location and is referenced in many books on rock and minerals.

The Smithsonian’s Museum of Natural History has a full-size diorama of the Morefield Gem Mine, and it is constructed of minerals taken from the mine. If you are in the D.C. area, this and the mineral hall are certainly worth a visit.

  • Exhibits and Gift Shop
  • Collecting From Mine Dumps (Bring your own bucket or container)
  • Sluice Screening (Screens and shovels available)
  • Picnicking (Bring your own drink; no alcohol allowed)
  • Restrooms

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SPRING NOTICE: Updated February 22, 2017

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SPRING NOTICE: UPDATED FEBRUARY 22, 2017

The Morefield Gem Mine will be closed for the spring and summer of 2017 to the public and schools.

We are still exploring deeper and further away from the present workings to better understand the full size of the vein or dike. The amount of pegmatite to mine has increased over the 20 years of operation as we have better understood the deposit.


Also, land adjacent to the Morefield Gem Mine is being developed for a quarry site, and there is much congestion due to heavy equipment moving in every direction including across the Morefield entrance. This does not impact future operation and expansion of the Morefield Gem Mine, and the mine site remains unchanged as friends of Morefield Gem Mine remember.


The website will be updated throughout the year to keep you informed on development, progress, schedules, and any surprises. We will post photos of the ongoing activities in the future.


Thank you for your interest and dedication. Morefield Gem Mine appreciates your friendship.