“This is a micromount specimen of hiortdahlite from the Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada. I acquired the specimen from Don and Mary Jane Smoley at the 2023 Mansfield mineral show. This specimen was in the former collection of Robert Rothenberg (1943-2021). Bob acquired the specimen from Don Smoley. Jamison K. Brizendine specimen and photo. ”