Arrojadite-(KNa) Mineral Data (original) (raw)

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)1.97F0.03P11.99Si0.01O47(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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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 - DomaticH-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),

Click Here for Large Arrojadite-(KNa) Structure Window Crystal Structure:

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Help on Above

| | Camara F , Oberti R , Chopin C , Medenbach O , American Mineralogist , 91 (2006) p.1249-1259, The arrojadite enigma: I. A new formula and, a new model for the arrojadite structure, Sample: Rapid Creek, Yukon, Canada | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

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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Print or Cut-and-Paste your Arrojadite-(KNa) Specimen Label here :

Arrojadite-(KNa)

KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2
Dana No: 41.07.02a.01 Strunz No: 08.BF.05
Locality:

Notes: