We're celebrating our 75th club anniversary!

Come to the party and celebrate with us!

Saturday, Dec. 9, 6 till 10 PM, Holiday Inn Alexandria, $30 dinner,

and presentations looking back and looking forward with

Dr. Jeffrey Post, chair of the Smithsonian's Mineral Sciences Department.

Contact thompson01 at erols dot com for info and Invitation, Menu, and Reply Card.

Reply by November 22.





Curious about the world under your feet?

Join with us to explore

the earth's 4000+ minerals and how they came to be!


Mission of the Mineralogical Society of the District of Columbia (MSDC)

  • To learn together and further knowledge about mineralogy and earth sciences
  • To share the pleasure of collecting minerals
  • To welcome you to explore these interests with us

Who We Are

  • We're rockhounds, professional mineral scientists, mineral collectors and enthusiasts, and people with new interests in minerals and earth sciences.
  • We're from DC, the Maryland and Virginia suburbs, and points beyond.
  • You're always welcome!

What we do:

  • Since 1942, we've met at the Smithsonian Institution to discuss all facets of earth sciences and hear  from experts in many related fields.
  • We sponsor or join with other local clubs for field trips.
  • Our monthly newsletters offer diverse articles at all knowledge levels.
  • We support mineral sciences by volunteering at the Smithsonian and elsewhere and by finding other ways to expand interest and knowledge.

When and Where

  • 1st Wednesday of every month except July and August.
  • At the Smithsonian National Museum of Natural History (NMNH), 10th Street and Constitution Avenue NW, Washington, DC.
  • 7:30 p.m. in the Constitution Avenue lobby. A security officer leads us to our meeting room, so please be on time.
  • December time and place may vary.

Next events – everyone welcome!


Nov. 18-19 -- Our  neighboring Northern Virginia Mineral Club's annual gem, mineral, and fossil show and sale at George Mason University -- always a great show! Kids welcome!



Sat., Dec. 9th -- 75th Anniversary of MSDC! Celebrations, dinner, and speakers (Dr. Jeffrey Post, Curator of the mineral collection at the Smithsonian). Holiday Inn in Alexandria, VA. Contact thompson01 at erols .com for info and ticket info, or see Photos for invitation, menu, and reply form.


Want to know more about any of this?

  • Email us at thompson01 at erols dot com. We’re happy to answer your questions.

  • Check the MSDC newsletter.

  • Visit a meeting any time!