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Welcome to MMS

From the MMS Board of Directors,


We are delighted to confirm that it is full speed ahead on the 2021 Greater Detroit Gem, Mineral & Fossil Show October 8-10, 2021 at the Macomb Community College Sports & Expo Center. We hope that you, your friends, and your family will help us celebrate the 76th Annual Show by attending this Fall. 


Please refer to the Show Info page on the website for more details. If you are a member, we look forward to seeing you at the Show as a volunteer. ​As always, be safe and see you in the Fall!

For the Kid in All of Us!

We added in a new Young Collectors Resources Page for the less seasoned "Miners". You can find it under our Links and Resources tab.


Upcoming Show

Livingston Show

Mineral of the Month


For our "Mineral of the Month" you'll learn about two very different minerals who happen to have very similar names: Rhodonite vs. Rhodochrosite

Geology - Mineralogy -Paleontology - Lapidary

The Michigan Mineralogical Society - MMS - is the premier organization in the state that seeks to educate, promote and further the science and hobby of mineral collecting, as well as an appreciation for fossils and gems. We primarily serve the southeast area of Michigan, but we have followers all over the United States and some in Canada.

Each year, the MMS hosts the largest event of professionals and hobbyists in the Midwest - the Greater Detroit Gem, Mineral and Fossil Show - which features some of the most respected dealers in the country as well as displays from  world famous museums such as the Smithsonian Institution, Royal Ontario Museum and the A.E. Seaman Mineral Museum, the official mineral museum of Michigan.

We hope you take the time to explore this website and decide to join hundreds of your fellow enthusiasts and become a member of the MMS. You'll be glad you did!


American Federation of Mineralogical Societies

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Midwest Federation of

Mineralogical & Geological Societies

Geo-Earth Sciences

Locations &


Collecting &


Elements & Physics


Meetings generally take place
on the second Monday evening at the Cranbrook Institute of Science located in Bloomfield Hills Michigan. Doors open at 7:00pm and meetings start at 7:30. Please see our Meetings Page for more information on our speakers, what we are talking about and to see a list of our previous speakers and events.

Evolution & Fossils

Chemistry & Reactions

Cosmic Events

Discoveries & Knowledge


Some of the Things We Meet About & Discuss:

Agate Microphotography by Daniel Metzger

A wide selection of interesting rock and mineral samples can be viewed in this latest video offering.

Tyrannosaurus Rex had a bad hair day...everyday.

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