SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
Log InRegister
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 ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced 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 MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Biotite from
Kaliadem Bunker, Gunung Merapi volcano (Mt Merapi), Special Region of Yogyakarta, Indonesia

03132010015658595163844.jpg
Biotite, etc.

Kaliadem Bunker, Gunung Merapi volcano, Special Region of Yogyakarta, Indonesia
03132010015658595163844.jpg
Biotite, etc.

Kaliadem Bunker, Gunung Merapi volcano, Special Region of Yogyakarta, Indonesia
03252220015657345526398.jpg
Biotite, etc.

Kaliadem Bunker, Gunung Merapi volcano, Special Region of Yogyakarta, Indonesia
Locality type:Mountain
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified, Inferred (explain how)
References
References:Collection of Alex Earl
Specimen source:Personally collected
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Kaliadem Bunker, Gunung Merapi volcano (Mt Merapi), Special Region of Yogyakarta, Indonesia
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 11, 2019 17:23:37
Go to top of page