Donate now to keep mindat.org alive!Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
The most common minerals on earthMineral PhotographyThe Elements and their Minerals
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch 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
StatisticsThe ElementsMember ListBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Bederite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Ca2(Mn2+)4(Fe3+)2(PO4)6 · 2H2O
Formula simplifies the crystal-chemical features; the Na site in other wicksite-group minerals is vacant in bederite.
Lustre:
Vitreous
Hardness:
5
Crystal System:
Orthorhombic
Member of:
Name:
Named in 1999 by M. A. Galliski, M. A. Cooper, Frank C. Hawthorne, and Petr Černý in honor of Roberto Beder [February 16, 1888 Zurich, Switzerland - November 19, 1930 Córdoba, Argentina] in recognition of his major contributions to the development of mineralogy in Argentina. assistant at Museum of Natural History of La Plata in 1912 and soon was Professor of Mineralogy at University of Córdoba (1914).
Hide all sections | Show all sections

Classification of BederiteHide

Approved
8.CF.05

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
F : With large and medium-sized cations, RO4:H2O > 1:1

Physical Properties of BederiteHide

Vitreous
Hardness:

Optical Data of BederiteHide

Type:
Biaxial
RI values:
nα = 1.729 nβ = 1.738 nγ = 1.741
2V:
Measured: 54° , Calculated: 58°
Max Birefringence:
δ = 0.012
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v strong

Chemical Properties of BederiteHide

Formula:
Ca2(Mn2+)4(Fe3+)2(PO4)6 · 2H2O

Formula simplifies the crystal-chemical features; the Na site in other wicksite-group minerals is vacant in bederite.
IMA Formula:
Ca2Mn2+4Fe3+2(PO4)6 · 2H2O

Crystallography of BederiteHide

Crystal System:
Orthorhombic

Type Occurrence of BederiteHide

Synonyms of BederiteHide

Other Language Names for BederiteHide

German:Bederit
Spanish:Bederita

Relationship of Bederite to other SpeciesHide

Member of:
Other Members of this group:
GrischuniteNaCa2Mn2+5Fe3+(AsO4)6 · 2H2OOrth.
Maneckiite(Na◻)Ca2Fe2+2(Fe3+Mg)Mn2(PO4)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
Tassieite(Na,◻)Ca2(Mg,Fe2+,Fe3+)2(Fe2+,Mg)2(Fe3+,Mg)2(PO4)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
WicksiteNaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2OOrth. mmm (2/m 2/m 2/m)

Related Minerals - Nickel-Strunz GroupingHide

8.CF.05GrischuniteNaCa2Mn2+5Fe3+(AsO4)6 · 2H2OOrth.
8.CF.05WicksiteNaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2OOrth. mmm (2/m 2/m 2/m)
8.CF.05Tassieite(Na,◻)Ca2(Mg,Fe2+,Fe3+)2(Fe2+,Mg)2(Fe3+,Mg)2(PO4)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CF.10HaigerachiteKFe3+3(HPO4)2(H2PO4)6 · 4H2OMon. 2/m : B2/b

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 BederiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Galliski M A, Cooper M A, Hawthorne F C, Černý P (1999): Bederite, a new pegmatite mineral from Nevados de Palermo, Argentina: description and crystal structure. American Mineralogist 84, 1674-1679.

Internet Links for BederiteHide

Localities for BederiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Argentina
 
  • Salta
    • La Poma department
      • Nevados de Palermo
M. A. Galliski (1981). Estructura, mineralogía y génesis de las pegmatitas de El Quemado, Salta, República Argentina. Tesis doctoral, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba.
Amer.Min.(1999) 84, 1674-1679; Galliski, M. A., & Hawthorne, F. C. (2002). Refinement of the crystal structure of ushkovite from Nevados de Palermo, Republica Argentina. The Canadian Mineralogist, 40(3), 929-937.
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
Kampf, A.R., Mills, S.J., Housley, R.M., Favreau, G., Boulliard, J-C, and Bourgoin, V. (2012) Angarfite, a new mineral species from the Angarf-sud pegmatite, Morocco : description and crystal structure. The Canadian Mineralogist Vol. 50, pages 781-791. DOI 10.3749/canmin.50.4.781
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2017, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: November 20, 2017 09:10:40 Page generated: November 6, 2017 20:06:31
Go to top of page