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Arrojadite-(SrFe) Mineral Data
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General Arrojadite-(SrFe) Information
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Chemical Formula: |
SrFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 |
Composition: |
Molecular Weight = 2,063.97 gm |
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Potassium 0.06 % K 0.07 % K2O |
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Barium 1.33 % Ba 1.49 % BaO |
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Sodium 3.56 % Na 4.80 % Na2O |
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Strontium 3.95 % Sr 4.67 % SrO |
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Lithium 0.00 % Li 0.01 % Li2O |
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Calcium 1.15 % Ca 1.60 % CaO |
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Magnesium 4.25 % Mg 7.05 % MgO |
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Scandium 0.09 % Sc 0.13 % Sc2O3 |
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Manganese 8.86 % Mn 11.44 % MnO |
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Aluminum 1.31 % Al 2.47 % Al2O3 |
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Zinc 0.22 % Zn 0.28 % ZnO |
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Iron 17.97 % Fe 23.11 % FeO |
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Silicon 0.03 % Si 0.06 % SiO2 |
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Phosphorus 17.93 % P 41.09 % P2O5 |
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Hydrogen 0.10 % H 0.92 % H2O |
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Lead 0.30 % Pb 0.32 % PbO |
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Oxygen 38.06 % O |
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Fluorine 0.83 % F 0.83 % F |
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- %
F -0.35 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
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) |
Environment: |
Arrojadite group |
IMA Status: |
Approved IMA 2005 (Dana # Added) |
Locality: |
Horrsj�berg, V�rmland, Sweden Link to MinDat.org Location Data. |
Name Origin: |
Named after arrojadite and site occupancy of the arrojadite structure. |
Name Pronunciation: |
Arrojadite-(SrFe) + Pronunciation |
Synonym: |
IMA2005-032 |
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Arrojadite-(SrFe) Crystallography
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Axial Ratios: |
a:b:c =1.6498:1:2.459 |
Cell Dimensions: |
a = 16.3992, b = 9.94, c = 24.4434, Z = 4; beta = 105.489° V = 3,839.76 Den(Calc)= 3.57 |
Crystal System: |
Monoclinic - Domatic H-M Symbol (m) Space Group: Cc |
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), |
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Physical Properties of Arrojadite-(SrFe)
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Diaphaneity: |
Transparent |
Luster: |
Vitreous (Glassy) |
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Optical Properties of Arrojadite-(SrFe)
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Optical Data: |
NCalc= 1.67 - from Gladstone-Dale relationship (KC = 0.1866) where Ncalc=Dcalc*KC+1 |
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Calculated Properties of Arrojadite-(SrFe)
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Electron Density: |
Bulk Density (Electron Density)=3.44 gm/cc note: Specific Gravity of Arrojadite-(SrFe) =3.57 gm/cc. |
Fermion Index: |
Fermion Index = 0.01 Boson Index = 0.99 |
Photoelectric: |
PEArrojadite-(SrFe) = 23.70 barns/electron U=PEArrojadite-(SrFe) x relectron= 81.50 barns/cc. |
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
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Arrojadite-(SrFe) Classification
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Dana Class: |
41.07.02a.06 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen |
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(41.07)where (A B)m (XO4)4 Zq |
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(41.07.02a)Arrojadite Group (Arrojadite Subgroup) (Al in Al site, OH in W site, Fe in M site) |
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41.07.02a.00 Arrojadite! KNa4CaMn4Fe10Al(PO4)12(OH,F)2 Cc m |
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41.07.02a.01 Arrojadite-(KNa)! KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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41.07.02a.02 Arrojadite-(KFe)! KNa2CaNa2(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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41.07.02a.03 Arrojadite-(NaFe)! NaNa2CaNa2(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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41.07.02a.04 Arrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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41.07.02a.05 Arrojadite-(BaFe)! (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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41.07.02a.06 Arrojadite-(SrFe)! SrFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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41.07.02a.07 Arrojadite-(PbFe)! PbFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
Strunz Class: |
08.BF.05 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BF -With medium-sized and large cations, (OH, etc.):RO4 < 0.5:1 |
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08.BF.05 Arrojadite! KNa4CaMn4Fe10Al(PO4)12(OH,F)2 Cc m |
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08.BF.05 Dickinsonite! KNa4Ca(Mn,Fe)14Al(PO4)12(OH)2 Cc m |
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08.BF.05 Arrojadite-(BaFe)! (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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08.BF.05 Arrojadite-(KFe)! KNa2CaNa2(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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08.BF.05 Arrojadite-(NaFe)! NaNa2CaNa2(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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08.BF.05 Arrojadite-(SrFe)! SrFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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08.BF.05 Arrojadite-(KNa)! KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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08.BF.05 Dickinsonite-(KNa)! KNa4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m |
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08.BF.05 Arrojadite-(PbFe)! PbFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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08.BF.05 Fluorarrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(F,OH)2 Cc m |
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08.BF.05 Arrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Cc m |
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08.BF.05 Fluorarrojadite-(KNa)! KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(F,OH)2 Cc m |
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08.BF.05 Fluorarrojadite-(BaFe)! (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(PO4)11(PO3OH)(F,OH)2 Cc m |
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08.BF.05 Ferri-arrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(F,OH)2 Cc m |
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08.BF.05 Dickinsonite-(KMnNa)! KNaMnNa3Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m |
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08.BF.05 Dickinsonite-(KNaNa)! KNaNa4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m |
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08.BF.05 Dickinsonite-(NaNa)! Na2Na4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m |
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Other Arrojadite-(SrFe) Information
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References: |
NAME( AmMin, v91, p1266) PHYS. PROP.(AmMin, v91, p1249) |
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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Print or Cut-and-Paste your Arrojadite-(SrFe) Specimen Label here :
Arrojadite-(SrFe)
SrFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2
Dana No: 41.07.02a.06 Strunz No: 08.BF.05
Locality:
Notes:
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