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Arrojadite-(SrFe)

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Formula:
{Sr◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Crystal System:
Monoclinic
Name:
For Miguel Arrojado Lisbôa, Brazilian geologist and Redefinition after the new arrojadite nomenclature (CNMMN 05-D, October 2005).
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Classification of Arrojadite-(SrFe)Hide

Approved
Approval Year:
2005
8.BF.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
F : With medium-sized and large cations, (OH, etc.):RO4< 0.5:1

Chemical Properties of Arrojadite-(SrFe)Hide

Formula:
{Sr◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
IMA Formula:
SrFe2+(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2

Crystallography of Arrojadite-(SrFe)Hide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Bb
Cell Parameters:
a = 16.3992 Å, b = 9.94 Å, c = 24.4434 Å
β = 105.489°
Ratio:
a:b:c = 1.65 : 1 : 2.459
Unit Cell V:
3,839.76 ų (Calculated from Unit Cell)

Type Occurrence of Arrojadite-(SrFe)Hide

Synonyms of Arrojadite-(SrFe)Hide

Other Language Names for Arrojadite-(SrFe)Hide

Relationship of Arrojadite-(SrFe) to other SpeciesHide

Other Members of this group:
Arrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
Arrojadite-(BaNa)BaNa3(NaCa)Fe2+13Al(PO4)11(PO3OH)(OH)Mon. 2/m : B2/b
Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
Arrojadite-(KFeNa){KNa}{Fe2+◻}{Ca}{Na3}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
Arrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(PbFe){Pb◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2Mon. 2/m : B2/b
Ferri-arrojadite-(BaNa){Ba◻}{Na2}{Ca}{Na2◻}{Fe2+13}{Fe3+}(PO4)11(HPO4)(OH)2
Fluorarrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2Mon. m : Bb
Fluorarrojadite-(BaNa)BaNa4CaFe13Al(PO4)11(PO3OH)F2Mon. m : Bb
Fluorarrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2
Fluorarrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2
Fluorcarmoite-(BaNa)Ba□Na2Na2□CaMg13Al(PO4)11(PO3OH)F2Mon. m : Bb

Related Minerals - Nickel-Strunz GroupingHide

8.BF.05Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
8.BF.05Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2Mon. 2/m : B2/b
8.BF.05Arrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
8.BF.05Arrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
8.BF.05Arrojadite-(PbFe){Pb◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
8.BF.05Fluorarrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2Mon. m : Bb
8.BF.05Arrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
8.BF.05Arrojadite-(BaNa)BaNa3(NaCa)Fe2+13Al(PO4)11(PO3OH)(OH)Mon. 2/m : B2/b
8.BF.05Fluorarrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2
8.BF.05Fluorarrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2
8.BF.10Samuelsonite(Ca,Ba)Ca8Fe2+2Mn2+2Al2(PO4)10(OH)2Mon. 2/m : B2/m
8.BF.15GriphiteNa4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8Iso. m3 (2/m 3)
8.BF.20NabiasiteBaMn2+9(VO4,AsO4)6(OH)2Iso.

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 Arrojadite-(SrFe)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Cámara, F., Oberti, R., Chopin, C., Medenbach, O. (2006): The arrojadite enigma: I. A new formula and a new model for the arrojadite structure. American Mineralogist, 91, 1249-1259
Chopin, C., Oberti, R., Cámara, F. (2006): The arrojadite enigma: II. Compositional space, new members and nomenclature of the group. American Mineralogist, 91, 1260-1270.

Internet Links for Arrojadite-(SrFe)Hide

Localities for Arrojadite-(SrFe)Hide

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.
Germany
 
  • Bavaria
    • Upper Palatinate
      • Waidhaus
        • Hagendorf
Mücke, A. & Keck, E. (2011): Karbonate aus dem Pegmatit von Hagendorf-Süd/Opf.: Zusammensetzung, Verbreitung und begleitende Phosphat-Mineralien (Apatit, Hagendorfit und Eosphorit-Gruppe) - darunter einige Neufunde (Triplit, Mineralien der Arrojadit-Dickinsonit Reihe, Goyazit und Variscit). Aufschluss 62, 87-117.
Sweden (TL)
 
  • Värmland
    • Torsby
American Mineralogist (2006) 91 (8-9), 1260-1270, IMA website
Mineral and/or Locality  
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