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|Formula simplifies the crystal-chemical features; the Na site in other wicksite-group minerals is vacant in bederite.|
|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).|
Classification of Bederite
|Strunz 8th edition ID:||7/C.18-15|
|Nickel-Strunz 10th (pending) edition ID:||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
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Type Occurrence of Bederite
|Type Locality:||El Peñón pegmatite, El Quemado District, Nevados de Palermo, Salta, Argentina|
Physical Properties of Bederite
Crystallography of Bederite
Optical Data of Bederite
|RI values:||nα = 1.729 nβ = 1.738 nγ = 1.741|
|2V:||Measured: 54° , Calculated: 58°|
|Maximum Birefringence:||δ = 0.012|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Dispersion:||r < v strong|
Chemical Properties of Bederite
Formula simplifies the crystal-chemical features; the Na site in other wicksite-group minerals is vacant in bederite.
|Simplified for copy/paste:||Ca2(Mn2+)4(Fe3+)2(PO4)6·2H2O|
|Essential elements:||Ca, Fe, H, Mn, O, P|
|All elements listed in formula:||Ca, Fe, H, Mn, O, P|
Relationship of Bederite to other Species
|Structurally related to group(s):|
|Related Minerals - Nickel-Strunz Grouping):|
Other Names for Bederite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Bederite
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 Bederite
Localities for Bederite
The 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.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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New Locality Added: Parada, Bragança, Bragança District, PortugalFrom Rui Nunes, 17th Sep 2014 17:36:26