Mineralogical Society


The Morris Museum Mineralogical Society (MMMS) was founded in 1971 to promote interest and education in the various earth sciences and, in particular, the subjects of geology, mineralogy, paleontology, lapidary and related subjects.

The MMMS meets monthly*, except July and August. Most meetings feature a speaker who delivers an illustrated lecture.

The society also hosts Rock and Mineral Weekend on Thanksgiving weekend every year at the Museum. After many years of hosting the Gem, Mineral, and Fossil sale on the grounds of Delbarton School in Morristown, the show is now held in August on Museum grounds.

For more information about membership in the club and its activities, email [email protected]

*virtual meetings usually start at 7:15 p.m. on the third Thursday of the month. In person meetings may be held on select Saturdays at Morris Museum.  All meeting days and times are subject to change. Please contact [email protected] for current schedule.

Upcoming Show: Rock and Mineral Weekend 
November 26-28, 2021

Friday, November 26, 12:00PM – 5:00PM
Saturday, November 27, 10:00AM – 5:00PM
Sunday, November 28, 1:00PM – 4:30PM


Members: FREE Admission
Non-Members: FREE with Museum Admission 
Admission includes access to all vendors and all open museum galleries*


Enjoy a rockin’ time at Morris Museum. Shop for treasures with top area mineral, gem and fossil dealers. Hundreds of specimens, books, jewelry and more (including overstock from the Morris Museum collection) will be offered for sale. Morris Museum Mineralogical Society members will be on hand to identify your rocks and minerals and share information about the club.

*Face coverings required at all times while in the museum for patrons over 2 years of age
Social distancing rules will apply throughout museum and at vendor tables.