The Mineralogical Society of the District of Columbia (MSDC)

We really appreciate it when you pay your dues promptly!

We prefer you pay your dues online*

Family – $25.00 per year
Individual – $20.00 per year

Membership will automatically renew each year.  You'll receive a notification 7 days prior to your renewal date with an opportunity to update your credit card information if it has changed.  Should you decide that you don't want to renew that particular year, contact Ken Rock at and he will cheerfully cancel your renewal.

Meeting Dates, Time, and Location

The first Wednesday of each month; no meeting in July or August.

Normally, MSDC meetings take place at the National Museum of Natural History, Smithsonian Institution, 10th Street and Constitution Ave, Washington DC. We usually gather at the Constitution Avenue entrance at 7:30 pm to meet our guard who escorts us to the Cathy Kerby Room.

*Prefer to pay your dues via check?  No problem. Print out the proper form (new member -or- existing member) above and send it with a check to:

Mineralogical Society of DC
c/o John Weidner
7099 Game Lord Drive
Springfield, VA 22153-1312

We respect your privacy.  Your information will never be shared outside of MSDC without your permission.  All credit card information is stored in a secure manner using STRIPE which is an industry leader in secure payment methods.