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Fluorarrojadite-(BaFe) Mineral Data
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General Fluorarrojadite-(BaFe) Information
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Chemical Formula: |
(Ba,K,Pb)Na3(Ca,Sr)(Fe++,Mg,Mn)14Al(PO4)11(PO3OH)(F,OH)2 |
Composition: |
Molecular Weight = 2,116.63 gm |
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Potassium 0.55 % K 0.67 % K2O |
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Barium 3.89 % Ba 4.35 % BaO |
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Sodium 3.26 % Na 4.39 % Na2O |
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Calcium 1.89 % Ca 2.65 % CaO |
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Magnesium 4.59 % Mg 7.62 % MgO |
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Manganese 7.79 % Mn 10.05 % MnO |
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Aluminum 1.27 % Al 2.41 % Al2O3 |
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Iron 21.11 % Fe 27.16 % FeO |
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Phosphorus 17.56 % P 40.24 % P2O5 |
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Hydrogen 0.07 % H 0.64 % H2O |
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Oxygen 36.66 % O |
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Fluorine 1.35 % F 1.35 % F |
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- %
F -0.57 % -O=F2 |
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______ ______ |
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100.00 % 100.94 % = TOTAL OXIDE |
Empirical Formula: |
Ba0.6K0.3CaNa3Fe2+8Mg4Mn2+3Al(PO4)11(PO3OH)F1.5(OH)0.5 |
Environment: |
Occurs as centimeter-sized darkgreen nodules, not unlike green apatite, in a quartz matrix. |
IMA Status: |
Approved IMA 2005 (Dana # Added) |
Locality: |
Sidi-bou-Kricha, Jebilet mountains, Marrakech province, Morocco Link to MinDat.org Location Data. |
Name Origin: |
Named as the fluorine analog of arrojadite and site occupancy of the fluorarrojadite structure. |
Synonym: |
IMA2005-058a |
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Fluorarrojadite-(BaFe) Crystallography
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Axial Ratios: |
a:b:c =1.6468:1:2.4592 |
Cell Dimensions: |
a = 16.497, b = 10.0176, c = 24.6359, Z = 4; beta = 105.649° V = 3,920.42 Den(Calc)= 3.59 |
Crystal System: |
Monoclinic - Domatic H-M Symbol (m) Space Group: Cc |
X Ray Diffraction: |
By Intensity(I/Io): 3.0312(1)(514), 3.0319(1)(424), 3.2108(0.475)(206),
2.5433(0.381)(226), 2.8413(0.341)(332), 2.7585(0.329)(331), 2.7595(0.329)(408), 3.4003(0.312)(116), |
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Physical Properties of Fluorarrojadite-(BaFe)
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Color: |
Dark yellowish green. |
Diaphaneity: |
Transparent |
Hardness: |
4-5 - Fluorite-Apatite |
Luster: |
Vitreous (Glassy) |
Streak: |
dark yellowish green |
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Optical Properties of Fluorarrojadite-(BaFe)
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Gladstone-Dale: |
CI calc= 0.004 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1876,KC= 0.1883 Ncalc = 1.68 |
Optical Data: |
Biaxial (+), a=1.668, b=1.67, g=1.682, bire=0.0140, 2V(Calc)=46, 2V(Meas)=37. Dispersion dispersion not observed. |
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Calculated Properties of Fluorarrojadite-(BaFe)
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Electron Density: |
Bulk Density (Electron Density)=3.46 gm/cc note: Specific Gravity of Fluorarrojadite-(BaFe) =3.59 gm/cc. |
Fermion Index: |
Fermion Index = 0.01 Boson Index = 0.99 |
Photoelectric: |
PEFluorarrojadite-(BaFe) = 25.91 barns/electron U=PEFluorarrojadite-(BaFe) x relectron= 89.59 barns/cc. |
Radioactivity: |
GRapi = 7.71 (Gamma Ray American Petroleum Institute Units)
Concentration of Fluorarrojadite-(BaFe) per GRapi unit = 12.98 (%)
Estimated Radioactivity from Fluorarrojadite-(BaFe) - barely detectable
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Fluorarrojadite-(BaFe) Classification
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Dana Class: |
41.07.02b.03 (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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(41.07.02b)Arrojadite Group (Fluorarrojadite Subgroup) (Al in Al site, F in W site, Fe in M site) |
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41.07.02b.01 Fluorarrojadite-(KNa)! KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(F,OH)2 Cc m |
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41.07.02b.02 Fluorarrojadite-(BaNa)! BaFeNa2Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(F,OH)2 Cc m |
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41.07.02b.03 Fluorarrojadite-(BaFe)! (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(PO4)11(PO3OH)(F,OH)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 Fluorarrojadite-(BaFe) Information
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References: |
NAME( AmMin, v91, p1270) PHYS. PROP.(AmMin, v91, p1270) OPTIC PROP.(AmMin, v91, p1270) |
See Also: |
Links to other databases for Fluorarrojadite-(BaFe) :
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 Fluorarrojadite-(BaFe) Specimen Label here :
Fluorarrojadite-(BaFe)
(Ba,K,Pb)Na3(Ca,Sr)(Fe++,Mg,Mn)14Al(PO4)11(PO3OH)(F,OH)2
Dana No: 41.07.02b.03 Strunz No: 08.BF.05
Locality:
Notes:
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