Curious about the earth's 4000+ minerals?

Interested in how they formed?

So are we!

MSDC PURPOSE – to promote interest in mineralogy, geology, and related earth sciences, and to encourage mineral collecting.

MEMBERS – from curious novices to expert geologists. We’re a friendly group, happy to have you visit anytime.

FIELD TRIPS – fun ways to learn. See examples at Field Trips tab and upcoming trips below, under "For Your Calendar" on this page.

AWARD-WINNING NEWSLETTER – often with award-winning articles by members. See Newsletters tab.

ORIGIN – founded in 1942 by members who included Smithsonian mineralogists.

NETWORKS – MSDC is a founding member of the Eastern Federation of Mineralogical and Lapidary Societies, and a member of theAmerican Federation of Mineralogical Societies. We value our collaboration with other clubs. Many members belong to multiple clubs.

Admiring a mineral at a meeting

MEETINGS – monthly at the Smithsonian Natural History Museum.

Great presenters – Smithsonian scientists, USGS geologists, field collectors, expert members, university profs, etc. Sample past topics at bottom of Calendar page.

Time for socializing and sharing your finds – door prizes – more.

First Wednesday of each month except July and August. December date may vary.

Be in museum lobby at Constitution Avenue and 10th Street NW before 7:45 p.m. so guards can take us to the meeting room.

Metro – 2 blocks from Federal Triangle station (Blue/Orange line).

Parking – Pay for street parking through 10 p.m. Ask for parking tips at meeting.

JOINING – annual dues of $20 per person, $25 per family. Join at a meeting or mail us your membership form and check.

OFFICERS, ETC.– David Nanney (president), David Hennessy (vice president), Andy Thompson (secretary), John Weider (treasurer), Steve Johnson (newsletter editor), Ed Fisher (hospitality), Casper Voogt and Betty Thompson (website managers).


New rockhound? Collector? Learner or expert about minerals and geology?


For your calendar:

Feb. 13, 2016 – MSDC FIELD TRIP – Dr. Lance Kearns and the geology labs and mineral museum at James Madison University, Harrisonburg, VA – details in the February newsletter

Mar. 2 – MSDC MEETING – “Karst Formations and Topography” – Dr. Dan Doctor of the US Geological Survey

Mar. 19-20 – Annual show of the Gem, Lapidary and Mineral Society of Montgomery County, Gaithersburg, MD. Features door prizes, demos, fluorescent minerals, free specimens for the kids, raffles, over 40 exhibits, more than 20 dealers, more.

Apr. 6 – MSDC MEETING – Dr. Jeffrey Post, curator of the Smithsonian’s gem and mineral collection, on “The 2016 Tucson Mineral Show and the Smithsonian’s acquisitions for the mineral and gem collections”

Apr. 22-23 – Atlantic Micromounters’ Conference – Spring Hill Suites, 6065 Richmond Highway, Alexandria, VA 22303

More at Calendar-Meetings tab.


Opportunity! – Help scientists search for 145 carbon-bearing minerals! They're relying on us, the mineral-collecting community. For real.

CONTACT US anytime or visit a meeting.