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
Black Rock deposit (Black Rock Apex; Black Rock), Cottonwood Mining District, Cottonwood Mountains, Mohave County, Arizona, USA


Locality type:Deposit
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Comments:As biotite schist.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Black Rock deposit (Black Rock Apex; Black Rock), Cottonwood Mining District, Cottonwood Mountains, Mohave County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:187743
Long-form Identifier:1:3:187743:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
21.2km (13.2 miles) Hackberry Mine (Hackberry Consolidated), Silver King group, Peacock Peak, Hackberry Mining District, Aquarius Mountains, Mohave County, Arizona, USA
28.3km (17.6 miles) Three-In-One claim (Three-In-One prospect), Three-In-One Mining District, Aquarius Mountains, Mohave County, Arizona, USA
41.9km (26.0 miles) Wagon Bow pegmatites, Aquarius Mountains, Mohave County, Arizona, USA
46.0km (28.6 miles) Taylor Mine (Grand Silica annex; Kingman Feldspar Mine), Wallapai Mining District, Cerbat Mountains, Mohave County, Arizona, USA
46.9km (29.2 miles) Kingman Feldspar Mine (Kingman Feldspar Quarry), Wallapai Mining District, Cerbat Mountains, Mohave County, Arizona, USA
48.7km (30.2 miles) Consolidated Feldspar Corporation claim (Consolidated Spar Mine), Stockton Hill Mining District, Wallapai Mining District, Mohave County, Arizona, USA
50.1km (31.1 miles) Rare Metals Mine (Waldren Mining Company Mine), Aquarius Mountains, Mohave County, Arizona, USA
54.2km (33.7 miles) Ophir prospects, Wabayuma Peak Wilderness Area, Ophir Mining District, Hualapai Mountains, Mohave County, Arizona, USA
54.7km (34.0 miles) Copper World Mine (Pacific Copper Mine), Yucca, Boriana Canyon, Boriana Mining District, Hualapai Mountains, Mohave County, Arizona, USA
55.5km (34.5 miles) Mineral Park Mine, Ithaca Peak, Mineral Park Mining District, Wallapai Mining District, Cerbat Mountains, Mohave County, Arizona, USA
References
 
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 15:10:30
Go to top of page