Dickinsonite-(NaNa) Mineral Data

General Dickinsonite-(NaNa) Information

Chemical Formula:

Na2Na4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2

Composition:

Molecular Weight = 2,036.23 gm

Sodium 6.77 % Na 9.13 % Na₂O

Calcium 1.97 % Ca 2.75 % CaO

Magnesium 2.39 % Mg 3.96 % MgO

Manganese 18.89 % Mn 24.39 % MnO

Aluminum 1.33 % Al 2.50 % Al₂O₃

Iron 10.97 % Fe 14.11 % FeO

Phosphorus 18.25 % P 41.83 % P₂O₅

Hydrogen 0.07 % H 0.66 % H₂O

Oxygen 38.89 % O

Fluorine 0.47 % F 0.47 % F

- % F -0.20 % -O=F₂

______ ______

100.00 % 99.61 % = TOTAL OXIDE

Empirical Formula:

Na₂Na₄CaMn²⁺₇Fe²⁺₄Mg₂Al(PO₄)₁₁(PO₄)(OH)_1.5F_0.5

IMA Status:

Not Submitted IMA (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-(NaNa) + Pronunciation

Synonym:

Dickinsonite

Dickinsonite-(NaNa) Crystallography

Crystal System:

Monoclinic - Domatic H-M Symbol (m) Space Group: Cc

Optical Properties of Dickinsonite-(NaNa)

Optical Data:

Calculated Properties of Dickinsonite-(NaNa)

Fermion Index:

Fermion Index = 0.0049264121
Boson Index = 0.9950735879

Photoelectric:

PE_{Dickinsonite-(NaNa)}= 9.46 barns/electron
U=PE_{Dickinsonite-(NaNa)} x rElectron Density= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Dickinsonite-(NaNa) is Not Radioactive

Dickinsonite-(NaNa) Classification

Dana Class:

41.07.02d.04 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.07)where (A B)m (XO4)4 Zq

(41.07.02d)Arrojadite Group (Ferri-arrojadite Subgroup) (Fe in Al site, OH in W site, Fe in M site)

41.07.02d.00 Dickinsonite? KNa4Ca(Mn,Fe)14Al(PO4)12(OH)2 Cc m

41.07.02d.01 Dickinsonite-(KMnNa)! KNaMnNa3Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m

41.07.02d.02 Dickinsonite-(KNaNa)! KNaNa4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m

41.07.02d.03 Dickinsonite-(KNa)! KNa4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2 Cc m

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

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 Dickinsonite-(NaNa) Information

References:

NAME( AmMin, v91, p1266)

See Also:

Links to other databases for Dickinsonite-(NaNa) :
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

Search for Dickinsonite-(NaNa) using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Dickinsonite-(NaNa) :

Ask about Dickinsonite-(NaNa) here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Dickinsonite-(NaNa) Specimen Label here :

Dickinsonite-(NaNa)

Na2Na4Ca(Mn,Fe,Mg)13Al(PO4)11(PO4)(OH,F)2
Dana No: 41.07.02d.04 Strunz No: 08.BF.05
Locality:

Notes:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.