Baltimore Mineral Society

 Baltimore, MD

Minerals, Mineral Collecting and Micromounting 

Founding Member:  The International Federation of Micromount Societies
Member of:  The Eastern Federation of Mineralogical and Lapidary Societies
Affiliated With:  The American Federation of Mineralogical Societies


 Our next meeting will be on September 28, 2016 at 7:30PM. The meeting will be at the Natural History Society of Maryland. 

Second Place

2012 EFMLS Website Contest

Photo by Bradley Grant
Calcite Crystals. Medford Quarry
Photo by Bradley Grant
The 60th Annual Paul Desautels Micromount Symposium will be held on the weekend of October 14th 2016.  Robert Rothenberg and Randolph Rothschild will also be inducted into the International Micromounters Hall of Fame on October 15th. 2016.

For more information and registration details, please click here
The International Micromounters Hall of Fame

The International Micromounters Hall of Fame was created by The Baltimore Mineral Society in 1975 to recognize significant contributions by people to the discipline of Micromounting.  Its members include some very notable indviduals in the field of Mineralogy. Please visit the Hall of Fame page or click on the link below to learn more about the people and their contributions.

When you get to the page listing the Hall of Fame members, just click on their name to learn more about why they are in the Hall of Fame.

International Micromounters Hall of Fame Membership Roll
 Photo by Bradley Grant
Photo by Brad Grant
The Baltimore Mineral Society, Inc., located in Baltimore, MD is a non-profit organization. It was organized in 1951 to promote interest in mineral/fossil collecting, micromounting, mineralogy, and related forms of the earth sciences. The society promotes good fellowship among the area clubs and greater appreciation for natures wonders. For information, please send an email to or please feel free to stop by and attend one of our  meetings. Guests are always welcome
Photo by Bradley Grant
Photo by Bradley Grant

Minerals of Maryland by Charles Ostrander

The Pamphlet Minerals of Maryland was written by Charles Ostrander and Walter E. Price Jr. and was published by the Natural History Society of Maryland in 1940.

Charles Ostrander was the Curator of the Department of Mineralology at The Natural History Society of Maryland and was one the foremost experts on mineral collecting in Maryland in the Mid 20th Century.  Many of the specimens he collected are still available for viewing at The Natural History Society of Maryland.

In this booklet, the authors document the minerals of Maryland and the localities where they were found.  While many of these localites have been plowed over or buried to the annals of history, this booklet documents the richness of Maryland's Mineral Heritage

It is with great thanks and gratitude that The Natural History Society of Maryland has made this pamphlet available to The Baltimore Mineral Society so that it can be downloaded and read by the general public.

Click Here to download your copy

The download will be a .zip file

Membership is open to all. Dues are $10.00 for a single membership or $15.00 for a family.  Dues are due in December. Members receive the club newsletter, The BMS Conglomerate, and are welcome on collecting trips. If you are interested in joining, please send an email to and we will email you enrollment information or just come to one of our meetings.