Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
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

Biotite from
CN Rock Dump (CN Dump), Town of Bancroft, Hastings County, Ontario, Canada


Locality type:Mine Dump
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Nepheline3
Plagioclase2
Sodalite2
- var Hackmanite2
Zircon1
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view CN Rock Dump (CN Dump), Town of Bancroft, Hastings County, Ontario, Canada
Data Identifiers
Mindat Occurrence Record ID:1669928
Long-form Identifier:1:3:1669928:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.2km (1.3 miles) Eagles Nest occurrence, Town of Bancroft, Hastings County, Ontario, Canada
4.0km (2.5 miles) Cancrinite Hill, Dungannon Township, Town of Bancroft, Hastings County, Ontario, Canada
4.1km (2.5 miles) Princess Sodalite Quarry (Princess Quarry), Dungannon Township, Town of Bancroft, Hastings County, Ontario, Canada
4.1km (2.6 miles) Greyhawk Mine, Faraday Township, Hastings County, Ontario, Canada
4.2km (2.6 miles) Davis Hill, Dungannon Township, Town of Bancroft, Hastings County, Ontario, Canada
5.1km (3.2 miles) Vardy Quarry, Dungannon Township, Town of Bancroft, Hastings County, Ontario, Canada
5.8km (3.6 miles) Bentley Lake occurrence (Madawaska mine property), Faraday Township, Hastings County, Ontario, Canada
6.3km (3.9 miles) Tait farm, Dungannon Township, Town of Bancroft, Hastings County, Ontario, Canada
6.5km (4.0 miles) Jeffrey (Jefrey Deposit) occurrence, Faraday Township, Hastings County, Ontario, Canada
6.7km (4.2 miles) Madawaska Mine (Faraday Mine), Faraday Township, Hastings County, Ontario, Canada
References
Jeffrey de Fourestier collectionIdentification: Visual Identification, Visual (Fluorescence)
 
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 4, 2026 11:31:12
Go to top of page