Mineral: Manganoneptunite with Serandite, Natrolite and Analcime
Locality: Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Dimensions: 5.5 x 5.5 x 4 cm / main crystal: 2.7 cm
Description: Mass: 60 g
MIM number: 1561
Probable year of extraction : 1972
Well formed, stout dark red crystal perched on a mound of serandite, natrolite and analcime, along with another slender, more coarsely formed manganoneptunite crystal
Photographer: AINU / Augustin de Valence
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