The Midwest Federation Of Mineralogical and Geological Societies

The Midwest Federation Of Mineralogical and Geological Societies is a member of the American Federation of Mineralogical Societies.  It was organized in 1940, and one of the original four founders of the AFMS in 1947.

It encompasses a region of 11 states and has about 120 different clubs. The links above will help you explore our website.

Our Federation will give you a list of our officers and committees as well as a copy of our bylaws.

States list clubs that belongs to the Midwest Federation.

Resources will provide you with MWF and AFM supplies as well as resources for programs for your organization.

Our Calendar of Events will give you information on member clubs’ shows in your area.


To promote interest and education in geology, mineralogy, paleontology, archaeology and lapidary, and to sponsor and provide means of coordinating the work and efforts of groups interested in these fields. MEMBERSHIP: Membership is open to both adult and junior Societies located in Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Ohio, Wisconsin and parts of Nebraska, North Dakota and South Dakota, plus a few clubs in Arkansas, which elected to join the Midwest Federation. Individuals, who find it impractical to be a member of a Society, may apply for individual membership. FINANCES: Member clubs pay annual dues, which at present are two dollars ($2.00) per capita for each adult member and fifty cents ($0.50) for each junior member of the Society. Of this amount, 50 cents ($.50) per adult member goes to the American Federation. Dues do not cover all expenses; they are augmented by one quarter of the net proceeds of the annual Convention and Show and interest income from the MWF Endowment Fund Major expenses are operation of the Program Library, printing, telephone, and postage involved in carrying out the Federation’s work. No officer or member of the Executive Committee receives any kind of salary. They pay their own expenses to and at meetings, and donate hundreds of hours of their time and skill to the Federation. The President and First Vice-President, who are delegates to the American Federation Convention, receive some travel expense money. The Uniform Rules Chairman is also alloted travel money to the AFMS Convention. ORGANIZATION: The work of the Federation is directed by a board of five (5) officers: a President, two (2) Vice-Presidents, a Secretary, and a Treasurer. They are elected annually by the member clubs and members of the Executive Committee via mail vote. Administrative work falls to the Executive Committee, which consists of the five elected officers, the State Directors, Committee Chairmen and Past-Presidents. This committee meets in the Fall and Spring and at the Annual Convention to report and make recommendations to the Council. The Council is comprised of the Executive Committee and one delegate from each member club. It meets at the annual convention to conduct the business of the Federation.

Source: MWF – Our Federation

Brukner Gem and Mineral Club – Troy, Ohio

The Brukner Gem & Mineral Club is a non-profit organization. They are a relaxed group that likes to have fun and learn all they can about rocks, minerals, gems, and fossils. Meetings are held at the Brukner Nature Center, 5995 Horseshoe Bend Rd., Troy, OH. Annual Show – August Monthly Meetings – First Thursday of each month @ 7:00 PM

Source: Gem and Mineral Clubs Across the United States, the complete list

Cincinnati Mineral Society | an Educational Society of Amateur Geologists and Mineralogists

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The Cincinnati Mineral Society is a non-profit association of amateur mineralogist and geologist formed to promote mineral collecting and to help teach the earth sciences and natural history.
Meetings are held at the Sharon Centre Auditorium, located in Sharon Woods Park, Cincinnati, OH.Annual Show – May
Monthly Meetings – Second Friday of each month (except July and August) @ 8:00 PM

Source: Cincinnati Mineral Society | an Educational Society of Amateur Geologists and Mineralogists

Dayton Gem & Mineral Society – Dayton, Ohio

The members of the Dayton Gem & Mineral Society have many interests in the world of Gems, Minerals, Fossils, and Rocks. Their members are involved in lapidary, mineral collecting, micro minerals collecting, fossil collecting, flint knapping, and rock collections. Meetings are held at 1400 E. 5th St., Dayton, OH. Monthly Meetings – Second Tuesday of each month @ 7:00 PM

Source: Gem and Mineral Clubs Across the United States, the complete list