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Massachusetts State Gem

Rhodonite necklace; photo by Narisa on Flickr (noncommercial use permitted with attribution /  no derivative works).

Official State Gem of Massachusetts

Rhodonite was recognized by Massachusetts in 1979 as the official state gem or gem symbol. All State Gems

Rhodonite varies in hue from a light pink to a deep rose or reddish pink, and is considered the most beautiful gem material found in Massachusetts (rhodonite is associated with black manganese).