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

Ferro-fluoro-eckermannite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
NaNa2(Fe2+4Al}Si8O22F2
The eckermannite group minerals are sodium amphiboles defined with A(Na+K+2Ca)> 0.5 apfu and 0.5 apfu < C(Al+Fe3++2Ti) < 1.5 apfu with Al as the dominant element

Ferro-fluoro-eckermannite is defined with

A position: Na dominant
C2+ position: Fe dominant
C3+ position: Al dominant
W position: F dominant
This page provides mineralogical data about Ferro-fluoro-eckermannite.


Hide all sections | Show all sections

Classification of Ferro-fluoro-eckermanniteHide

Notes:
Intermediate member of a solid-solution series

Chemical Properties of Ferro-fluoro-eckermanniteHide

Formula:
NaNa2(Fe2+4Al}Si8O22F2

The eckermannite group minerals are sodium amphiboles defined with A(Na+K+2Ca)> 0.5 apfu and 0.5 apfu < C(Al+Fe3++2Ti) < 1.5 apfu with Al as the dominant element

Ferro-fluoro-eckermannite is defined with

A position: Na dominant
C2+ position: Fe dominant
C3+ position: Al dominant
W position: F dominant

Relationship of Ferro-fluoro-eckermannite to other SpeciesHide

Other Members of this group:
EckermanniteNaNa2(Mg4Al}Si8O22(OH)2Mon. 2/m : B2/m
Ferro-eckermanniteNaNa2(Fe2+4Al)Si8O22(OH)2Mon.
Fluoro-eckermanniteNaNa2(Mg4Al}Si8O22F2
Mangano-ferri-eckermannite{Na}{Na2}{Mn2+4Fe3+}Si8O22(OH)2Mon.
Potassic-eckermannite{K}{Na2}{Mg4Al}(Si8O22)(OH)2

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Ferro-fluoro-eckermanniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hawthorne, F.C., Oberti, R., Harlow, G.E., Maresch, W.V., Martin, R.F., Schumacher, J.C., Welch, M.D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist: 97: 2031-2048.

Internet Links for Ferro-fluoro-eckermanniteHide

 
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 1993-2020, 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: February 26, 2020 22:39:29 Page generated: November 28, 2019 07:19:51
Go to top of page