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Arrojadite-(SrFe) Mineral Data

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General Arrojadite-(SrFe) Information

Help on Chemical  Formula: Chemical Formula: SrFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2
Help on Composition: Composition: Molecular Weight = 2,063.97 gm
   Potassium    0.06 %  K     0.07 % K2O
   Barium       1.33 %  Ba    1.49 % BaO
   Sodium       3.56 %  Na    4.80 % Na2O
   Strontium    3.95 %  Sr    4.67 % SrO
   Lithium      0.00 %  Li    0.01 % Li2O
   Calcium      1.15 %  Ca    1.60 % CaO
   Magnesium    4.25 %  Mg    7.05 % MgO
   Scandium     0.09 %  Sc    0.13 % Sc2O3
   Manganese    8.86 %  Mn   11.44 % MnO
   Aluminum     1.31 %  Al    2.47 % Al2O3
   Zinc         0.22 %  Zn    0.28 % ZnO
   Iron        17.97 %  Fe   23.11 % FeO
   Silicon      0.03 %  Si    0.06 % SiO2
   Phosphorus  17.93 %  P    41.09 % P2O5
   Hydrogen     0.10 %  H     0.92 % H2O
   Lead         0.30 %  Pb    0.32 % PbO
   Oxygen      38.06 %  O
   Fluorine     0.83 %  F     0.83 % F
                 -   %   F    -0.35 % -O=F2    
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sr0.93Na3.2Ca0.59Ba0.2Pb0.03K0.03Fe2+6.64Mg3.61Mn2+3.33Zn0.07Li0.01Sc0.04Al(OH)1.1 F0.9P11.95Si0.02O47(OH)
Help on Environment: Environment: Arrojadite group
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Horrsj�berg, V�rmland, Sweden Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after arrojadite and site occupancy of the arrojadite structure.
Help on Name Pronunciation: Name Pronunciation: Arrojadite-(SrFe) + Pronunciation Say ARROJADITE-(SRFE)
Help on Synonym: Synonym: IMA2005-032

Arrojadite-(SrFe) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.6498:1:2.459
Help on Cell Dimensions: Cell Dimensions: a = 16.3992, b = 9.94, c = 24.4434, Z = 4; beta = 105.489° V = 3,839.76 Den(Calc)= 3.57
Help on Crystal System: Crystal System: Monoclinic - Domatic H-M Symbol (m) Space Group: Cc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.0093(1), 2.6847(0.699), 3.1925(0.412),2.737(0.278), 3.3784(0.262), 2.8047(0.24), 2.8202(0.235), 2.5291(0.23),

Physical Properties of Arrojadite-(SrFe)

Help on Diaphaneity: Diaphaneity: Transparent
Help on Luster: Luster: Vitreous (Glassy)

Optical Properties of Arrojadite-(SrFe)

Help on Optical Data: Optical Data: NCalc= 1.67 - from Gladstone-Dale relationship (KC = 0.1866) where Ncalc=Dcalc*KC+1

Calculated Properties of Arrojadite-(SrFe)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.44 gm/cc
note: Specific Gravity of Arrojadite-(SrFe) =3.57 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEArrojadite-(SrFe) = 23.70 barns/electron
U=PEArrojadite-(SrFe) x relectron= 81.50 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 0.78 (Gamma Ray American Petroleum Institute Units)
Concentration of Arrojadite-(SrFe) per GRapi unit =128.21 (%)

Estimated Radioactivity from Arrojadite-(SrFe) - barely detectable


Arrojadite-(SrFe) Classification

Help on  Dana Class: Dana Class: 41.07.02a.06 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.07)where (A B)m (XO4)4 Zq
  (41.07.02a)Arrojadite Group (Arrojadite Subgroup) (Al in Al site, OH in W site, Fe in M site)
41.07.02a.00 Arrojadite! KNa4CaMn4Fe10Al(PO4)12(OH,F)2 Cc m
41.07.02a.01 Arrojadite-(KNa)! KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
41.07.02a.02 Arrojadite-(KFe)! KNa2CaNa2(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
41.07.02a.03 Arrojadite-(NaFe)! NaNa2CaNa2(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
41.07.02a.04 Arrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
41.07.02a.05 Arrojadite-(BaFe)! (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(PO4)11(PO3OH)(OH,F)2 Cc m
41.07.02a.06 Arrojadite-(SrFe)! SrFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
41.07.02a.07 Arrojadite-(PbFe)! PbFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
Help on  Strunz Class: Strunz Class: 08.BF.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BF -With medium-sized and large cations, (OH, etc.):RO4 < 0.5:1
08.BF.05 Arrojadite! KNa4CaMn4Fe10Al(PO4)12(OH,F)2 Cc m
08.BF.05 Dickinsonite! KNa4Ca(Mn,Fe)14Al(PO4)12(OH)2 Cc m
08.BF.05 Arrojadite-(BaFe)! (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(PO4)11(PO3OH)(OH,F)2 Cc m
08.BF.05 Arrojadite-(KFe)! KNa2CaNa2(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
08.BF.05 Arrojadite-(NaFe)! NaNa2CaNa2(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
08.BF.05 Arrojadite-(SrFe)! SrFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
08.BF.05 Arrojadite-(KNa)! KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
08.BF.05 Dickinsonite-(KNa)! KNa4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m
08.BF.05 Arrojadite-(PbFe)! PbFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
08.BF.05 Fluorarrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(F,OH)2 Cc m
08.BF.05 Arrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m
08.BF.05 Fluorarrojadite-(KNa)! KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(F,OH)2 Cc m
08.BF.05 Fluorarrojadite-(BaFe)! (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(PO4)11(PO3OH)(F,OH)2 Cc m
08.BF.05 Ferri-arrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(F,OH)2 Cc m
08.BF.05 Dickinsonite-(KMnNa)! KNaMnNa3Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m
08.BF.05 Dickinsonite-(KNaNa)! KNaNa4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m
08.BF.05 Dickinsonite-(NaNa)! Na2Na4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m

Other Arrojadite-(SrFe) Information

Help on References: References: NAME( AmMin, v91, p1266) PHYS. PROP.(AmMin, v91, p1249)
Help on See Also: See Also: Links to other databases for Arrojadite-(SrFe) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: 41.07.02a.06 Strunz No: 08.BF.05





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