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Dickinsonite-(KMnNa) Mineral Data
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General Dickinsonite-(KMnNa) Information
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Chemical Formula: |
KNaMnNa3Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 |
Composition: |
Molecular Weight = 2,117.87 gm |
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Potassium 0.92 % K 1.11 % K2O |
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Barium 0.06 % Ba 0.07 % BaO |
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Sodium 6.27 % Na 8.46 % Na2O |
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Strontium 0.21 % Sr 0.24 % SrO |
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Lithium 0.10 % Li 0.22 % Li2O |
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Calcium 0.97 % Ca 1.35 % CaO |
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Magnesium 0.07 % Mg 0.11 % MgO |
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Titanium 0.02 % Ti 0.04 % TiO2 |
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Manganese 25.16 % Mn 32.49 % MnO |
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Aluminum 1.16 % Al 2.19 % Al2O3 |
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Zinc 0.03 % Zn 0.04 % ZnO |
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Iron 10.05 % Fe 12.62 % FeO / 0.34 % Fe2O3 |
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Silicon 0.01 % Si 0.03 % SiO2 |
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Phosphorus 17.58 % P 40.28 % P2O5 |
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Hydrogen 0.10 % H 0.93 % H2O |
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Lead 0.10 % Pb 0.11 % PbO |
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Oxygen 37.15 % O |
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Fluorine 0.03 % F 0.03 % F |
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- %
F -0.01 % -O=F2 |
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______ ______ |
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100.00 % 100.64 % = TOTAL OXIDE |
Empirical Formula: |
K0.5Na5.78Ca0.51Sr0.05Ba0.01Pb0.01Mn2+9.7Fe2+3.72Li0.31Mg0.06Zn0.01Al0.91Fe3+0.09
Ti0.01(OH)1.97F0.03P12.02Si0.01O47(OH)0.21 |
IMA Status: |
Approved IMA 2005 (Dana # Added) |
Locality: |
Branchville, Fairfield Co., Connecticut, USA Link to MinDat.org Location Data. |
Name Origin: |
Named after dickinsonite and site occupancy of the arrojadite-dickensonite structure. |
Name Pronunciation: |
Dickinsonite-(KMnNa) + Pronunciation |
Synonym: |
Dickinsonite |
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IMA2005-048 |
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Dickinsonite-(KMnNa) Crystallography
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Axial Ratios: |
a:b:c =1.6522:1:2.4625 |
Cell Dimensions: |
a = 16.69, b = 10.1013, c = 24.8752, Z = 4; beta = 105.616° V = 4,038.93 Den(Calc)= 3.48 |
Crystal System: |
Monoclinic - Domatic H-M Symbol (m) Space Group: Cc |
X Ray Diffraction: |
By Intensity(I/Io): 3.0623(1), 3.0646(1), 2.7299(0.891),2.7304(0.891), 3.2447(0.327), 2.7785(0.286), 2.5702(0.27), 5.9715(0.268), 2.7875(0.266), |
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Physical Properties of Dickinsonite-(KMnNa)
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Diaphaneity: |
Transparent |
Luster: |
Vitreous (Glassy) |
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Optical Properties of Dickinsonite-(KMnNa)
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Optical Data: |
NCalc= 1.67 - from Gladstone-Dale relationship (KC = 0.1931) where Ncalc=Dcalc*KC+1 |
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Calculated Properties of Dickinsonite-(KMnNa)
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Electron Density: |
Bulk Density (Electron Density)=3.35 gm/cc note: Specific Gravity of Dickinsonite-(KMnNa) =3.48 gm/cc. |
Fermion Index: |
Fermion Index = 0.0029922499 Boson Index = 0.9970077501 |
Photoelectric: |
PEDickinsonite-(KMnNa) = 12.78 barns/electron U=PEDickinsonite-(KMnNa) x relectron= 42.76 barns/cc. |
Radioactivity: |
GRapi = 12.82 (Gamma Ray American Petroleum Institute Units)
Concentration of Dickinsonite-(KMnNa) per GRapi unit = 7.80 (%)
Estimated Radioactivity from Dickinsonite-(KMnNa) - barely detectable
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Dickinsonite-(KMnNa) Classification
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Dana Class: |
41.07.02d.01 (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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(41.07.02d)Arrojadite Group (Ferri-arrojadite Subgroup) (Fe in Al site, OH in W site, Fe in M site) |
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41.07.02d.00 Dickinsonite? KNa4Ca(Mn,Fe)14Al(PO4)12(OH)2 Cc m |
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41.07.02d.01 Dickinsonite-(KMnNa)! KNaMnNa3Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m |
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41.07.02d.02 Dickinsonite-(KNaNa)! KNaNa4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m |
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41.07.02d.03 Dickinsonite-(KNa)! KNa4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m |
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41.07.02d.04 Dickinsonite-(NaNa)! Na2Na4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(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 Dickinsonite-(KMnNa) Information
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References: |
NAME( AmMin, v91, p1266) PHYS. PROP.(AmMin, v91, p1249) |
See Also: |
Links to other databases for Dickinsonite-(KMnNa) :
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 Dickinsonite-(KMnNa) Specimen Label here :
Dickinsonite-(KMnNa)
KNaMnNa3Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2
Dana No: 41.07.02d.01 Strunz No: 08.BF.05
Locality:
Notes:
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