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Arrojadite-(KNa) Mineral Data

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General Arrojadite-(KNa) Information

Help on Chemical  Formula: Chemical Formula: KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2
Help on Composition: Composition: Molecular Weight = 2,033.01 gm
   Potassium    1.60 %  K     1.92 % K2O
   Sodium       5.67 %  Na    7.64 % Na2O
   Strontium    0.04 %  Sr    0.05 % SrO
   Lithium      0.00 %  Li    0.01 % Li2O
   Calcium      1.79 %  Ca    2.51 % CaO
   Magnesium    3.22 %  Mg    5.33 % MgO
   Titanium     0.05 %  Ti    0.08 % TiO2
   Manganese    2.78 %  Mn    3.59 % MnO
   Aluminum     1.38 %  Al    2.61 % Al2O3
   Zinc         0.03 %  Zn    0.04 % ZnO
   Iron        25.66 %  Fe   33.01 % FeO
   Silicon      0.01 %  Si    0.03 % SiO2
   Phosphorus  18.27 %  P    41.86 % P2O5
   Hydrogen     0.15 %  H     1.32 % H2O
   Oxygen      39.33 %  O
   Fluorine     0.03 %  F     0.03 % F
                 -   %   F    -0.01 % -O=F2    
              ______        ______ 
              100.00 %      100.01 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.83Na5.01Ca0.91Sr0.01Fe2+9.34Mg2.69Mn2+1.03Zn0.01Li0.01Al1.04Ti0.02(OH)1.97F0.03 P11.99Si0.01O47(OH)
Help on Environment: Environment: Occurs as coating of open fractures in siderite-rich Lower Cretaceous sandstones of the Rapid Creek area. Arrojadite group
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Rapid Creek, Yukon Territory, Canada 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-(KNa) + Pronunciation Say ARROJADITE-(KNA)
Help on Synonym: Synonym: IMA2005-047

Arrojadite-(KNa) Image

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Comments: Brownish crystals of arrojadite-(KNa).
Location: Big Fish River, Dawson Mining District, Yukon Territory, Canada. Scale: Picture Size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Arrojadite-(KNa) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.6435:1:2.4517
Help on Cell Dimensions: Cell Dimensions: a = 16.522, b = 10.0529, c = 24.6477, Z = 4; beta = 106.509° V = 3,925.07 Den(Calc)= 3.44
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): 3.0498(1), 2.6908(0.713), 5.8614(0.288),2.7933(0.28), 5.0264(0.275), 2.7979(0.249), 2.7774(0.244),

Physical Properties of Arrojadite-(KNa)

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

Optical Properties of Arrojadite-(KNa)

Help on Optical Data: Optical Data: NCalc= 1.65 - from Gladstone-Dale relationship (KC = 0.1904) where Ncalc=Dcalc*KC+1

Calculated Properties of Arrojadite-(KNa)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.34 gm/cc
note: Specific Gravity of Arrojadite-(KNa) =3.44 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0089836476
Boson Index = 0.9910163524
Help on Photoelectric: Photoelectric: PEArrojadite-(KNa) = 9.92 barns/electron
U=PEArrojadite-(KNa) x relectron= 33.17 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 22.39 (Gamma Ray American Petroleum Institute Units)
Concentration of Arrojadite-(KNa) per GRapi unit = 4.47 (%)

Estimated Radioactivity from Arrojadite-(KNa) - barely detectable


Arrojadite-(KNa) Classification

Help on  Dana Class: Dana Class: 41.07.02a.01 (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-(KNa) Information

Help on References: References: NAME( AmMin, v91,1249) PHYS. PROP.(AmMin, v91, p1249)
Help on See Also: See Also: Links to other databases for Arrojadite-(KNa) :
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.01 Strunz No: 08.BF.05





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