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|Formula simplifies the crystal-chemical features; the Na site in other wicksite-group minerals is vacant in bederite.|
|Name:||For Roberto Beder (1888-1930), Swiss-Argentinian mineralogist, in recognition of his major contributions to the development of mineralogy in Argentina.|
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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