Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Sericite from
Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada


Locality type:Mine
Classification
Species:Muscovite var: Sericite
Formula:KAl2(AlSi3O10)(OH)2
Comments:Occurs in an Archean Cu-Zn massive sulfide deposit.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sericite data
Locality Data:Click here to view Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
Data Identifiers
Mindat Occurrence Record ID:65922
Long-form Identifier:1:3:65922:2
GUID (UUID V4):0
Nearest other occurrences of Sericite
51.9km (32.2 miles) ⓘGolden Giant Mine, Hemlo gold deposit, Bomby Township, Thunder Bay District, Ontario, Canada
52.0km (32.3 miles) ⓘHemlo gold deposit, Bomby Township, Thunder Bay District, Ontario, Canada
52.0km (32.3 miles) ⓘDavid Bell Mine, Hemlo gold deposit, Bomby Township, Thunder Bay District, Ontario, Canada
52.0km (32.3 miles) ⓘWilliams Mine (Page Williams Mine), Hemlo gold deposit, Bomby Township, Thunder Bay District, Ontario, Canada
52.3km (32.5 miles) ⓘFearless-Python property, Thunder Bay District, Ontario, Canada
57.1km (35.5 miles) ⓘFleck occurrence (American Brass; Two Duck Lake), O'Neill Township, Thunder Bay District, Ontario, Canada
References
Spry, P.G. (1983) An unusual gahnite-forming reaction, Geco base-metal deposit, Manitouwadge, Ontario. The Canadian Mineralogist: 20(4): 549–553.
Franklin, J.M., Schnieders, B.R., Koopman, E.R. (1991) Mineral Deposits in the western Superior Province, Ontario (Field Trip 9) Geological Survey of Canada, Open File 2164.
 
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: October 20, 2026 20:01:23
Go to top of page