Vote for your favorite mineral in #MinCup26! - Azurite vs. Smithsonite
It's carbonate-vs-carbonate to kick off Mineral Cup 2026 with copper-rich Azurite against zinc-rich Smithsonite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Kaersutite from
Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada


Locality type:Quarry
Classification
Species:Kaersutite
Formula:NaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Comments:All analyses reported in the literature represent ferri-kaersutite (Horváth et al. 2019) in the current amphibole nomenclature (Hawthorne et al. 2012). Ferri-kaersutite was described by Gentili et al. (2016); all earlier references for kaersutite (sensu stricto) appear to be erroneous.
Habit:prismatic phenocrysts
Colour:black
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Kaersutite data
Locality Data:Click here to view Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Data Identifiers
Mindat Occurrence Record ID:22147
Long-form Identifier:1:3:22147:2
GUID (UUID V4):0
Nearest other occurrences of Kaersutite
22.7km (14.1 miles) ⓘMont Saint-Gregoire (Mont Johnson; Monoir), Le Haut-Richelieu RCM, Montérégie, Québec, Canada
24.8km (15.4 miles) ⓘMont Yamaska, Rouville RCM, Montérégie, Québec, Canada
31.3km (19.4 miles) ⓘLafarge Montreal East quarry (Carrière Lafarge Montréal-Est; Francon Montréal-Est quarry; Canada Cement quarry), Montréal-Est, Montréal, Québec, Canada
37.1km (23.0 miles) ⓘCorporation (Forsyth's) quarry, Mont Royal, Montréal, Québec, Canada
38.6km (24.0 miles) ⓘCanadian National Railway tunnel, Mont Royal, Montréal, Québec, Canada
41.2km (25.6 miles) ⓘL'Épiphanie quarry, L'Épiphanie, L'Assomption RCM, Lanaudière, Québec, Canada
46.4km (28.8 miles) ⓘMont Shefford, Shefford, La Haute-Yamaska RCM, Estrie, Québec, Canada
50.6km (31.4 miles) ⓘMont Brome, Bromont, Estrie, Québec, Canada
References
Grice, Joel (1989) Mont Saint-Hilaire, Quebec: Canada's Most Diverse Mineral Locality. In Famous Mineral Localities of Canada. Fitzhenry & Whiteside Limited & the National Museum of Natural Sciences. p.100-108.
Horváth, László, Gault, Robert A. (1990) The Mineralogy of Mont Saint-Hilaire, Quebec. The Mineralogical Record, 21 (4) 281-359
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 1, 2026 11:17:55
Go to top of page