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Tourmaline Turns 200 commemorates the bicentennial of the discovery of the Maine state mineral, tourmaline, in the fall of 1820.

Tourmaline (elbaite) is now known from more than 60 locations in Maine and gems have been faceted from at least a dozen of them. The exhibition combines specimens showing the range of colors, forms, species, and occurrences of Maine tourmaline with items from MMGM’s archival and library collections.

On view in the Discovery Gallery now through Fall 2021. Happy Birthday Tourmaline!

Keeping You Safe

The Maine Mineral & Gem Museum is committed to making your visit a safe and healthy one. To ensure that the museum remains open and accessible to everyone, we ask that all visitors follow our COVID-19 guidelines.


Face Coverings Encouraged

Face masks will be available.

Hand sanitizer

Hand Hygiene

Sanitizer available upon entry and throughout the galleries.


Social Distance

Please give other visitors plenty of space.

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Specializing in jewelry made with colorful Maine mined gemstones from everyday casual to custom one-of-a-kind pieces. With a unique mineralogical niche, the Museum Store offers a wide selection of products for all ages.

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