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Arrojadite-(KNa)

A valid IMA mineral species

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Arrojadite-(KNa), etc.

Big Fish River, Dawson mining district, Yukon, Canada

Arrojadite-(KNa)

Big Fish River, Dawson mining district, Yukon, Canada

Arrojadite-(KNa)

Rapid Creek, Dawson mining district, Yukon, Canada

Arrojadite-(KNa), etc.

Big Fish River, Dawson mining district, Yukon, Canada

Arrojadite-(KNa)

Big Fish River, Dawson mining district, Yukon, Canada

Arrojadite-(KNa)

Rapid Creek, Dawson mining district, Yukon, Canada

Arrojadite-(KNa), etc.

Big Fish River, Dawson mining district, Yukon, Canada

Arrojadite-(KNa)

Big Fish River, Dawson mining district, Yukon, Canada

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About Arrojadite-(KNa)Hide

Formula:

(KNa)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂

Colour:

Yellow

Crystal System:

Monoclinic

Member of:

Arrojadite Group

Name:

For Miguel Arrojado Ribeiro Lisboa, Brazilian geologist and Redefinition after the new arrojadite nomenclature (CNMMN 05-D, October 2005).

Type Locality:

ⓘ Rapid Creek, Dawson mining district, Yukon, Canada

Arrojadite Group

Unique IdentifiersHide

Mindat ID:

28959

Long-form identifier:

mindat:1:1:28959:7

Similar NamesHide

Arrojadite	A synonym of Arrojadite Group
Arrojadite (of Mason)	A synonym of Hagendorfite
Arrojadite-(BaFe)	A synonym of Sigismundite
Arrojadite-(BaNa)	A valid IMA mineral species	(Ba◻)(NaNa)Ca(Na₂◻)Fe₁₃²⁺Al(PO₄)₁₁(PO₃OH)(OH)₂
Arrojadite-(KFe)	A valid IMA mineral species - grandfathered	(KNa)(Fe²⁺◻)Ca(Na₂◻)Fe₁₃²⁺Al(PO₄)₁₁(PO₃OH)(OH)₂
Arrojadite-(KFe)-Dickinsonite-(KMnNa) Series	A solid-solution series between two end-member minerals
Arrojadite-(KFeNa)		(KNa)(Fe²⁺◻)Ca(Na₂Na)Fe₁₃²⁺Al(PO₄)₁₁(PO₄)(OH)₂
Arrojadite-(NaFe)		(NaNa)(Fe²⁺◻)Ca(Na₂◻)Fe₁₃²⁺Al(PO₄)₁₁(PO₃OH)(OH)₂
Arrojadite-(PbFe)	A valid IMA mineral species	(Pb◻)(Fe²⁺◻)Ca(Na₂◻)Fe₁₃²⁺Al(PO₄)₁₁(PO₃OH)(OH)₂
Arrojadite-(SrFe)	A valid IMA mineral species	(Sr◻)(Fe²⁺◻)Ca(Na₂◻)Fe₁₃²⁺Al(PO₄)₁₁(PO₃OH)(OH)₂

IMA Classification of Arrojadite-(KNa)Hide

IMA status:

Approved

IMA Formula:

KNa₃(CaNa₂)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂

Approval year:

2005

First published:

2006

Classification of Arrojadite-(KNa)Hide

Strunz-mindat (2026):

8.BF.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H₂O
F : With medium-sized and large cations, (OH, etc.):RO₄< 0.5:1

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference for Standard
Ajd-KNa	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Arrojadite-(KNa)Hide

Transparency:

Transparent

Colour:

Yellow

Optical Data of Arrojadite-(KNa)Hide

Type:

Biaxial (+)

RI values:

n_α = 1.651(1) n_β = 1.656(1) n_γ = 1.662(10)

2V:

Measured: 87.8° (1), Calculated: 85°

Max. Birefringence:

δ = 0.011
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Interference Figure:

This shows the idealized biaxial acute bisectrix (Bxa) interference figure - the conoscopic view for a grain cut perpendicular to the acute bisectrix, using this mineral's 2V. The two small white dots mark the melatopes - the points where the two optic axes emerge - and are shown only when they fall within the field of view. The coloured bands are isochromatics, and the dark bands are isogyres.

Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.

Thickness: 30 µm

Stage rotation: 0°

Dispersion:

r << v.

Optical Extinction:

X = b; Y ≈ c.

Pleochroism:

Weak

Comments:

Very weak. Y = colorless; X = Z = pale yellow.

Comments:

Absorption: Y < X ≈ Z.

Chemistry of Arrojadite-(KNa)Hide

Mindat Formula:

(KNa)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂

Element Weights:

Element	% weight
O	37.703 %
Fe	34.216 %
P	17.518 %
Na	5.418 %
Ca	1.889 %
K	1.843 %
Al	1.272 %
H	0.143 %

Calculated from ideal end-member formula.

Elements listed:

Al, Ca, Fe, H, K, Na, O, P - search for minerals with similar chemistry

Crystallography of Arrojadite-(KNa)Hide

Crystal System:

Monoclinic

Class (H-M):

m - Domatic

Space Group:

Cell Parameters:

a = 16.552 Å, b = 10.0529 Å, c = 24.6477 Å
β = 106.509°

Ratio:

a:b:c = 1.646 : 1 : 2.452

Unit Cell V:

3,932.19 Å³ (Calculated from Unit Cell)

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

View
CIF File Best | x | y | z | a | b | c

Rotation
Stop | Start

Labels
Console Off | On | Grey | Yellow

Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Year	Locality	Temp (K)
0012658	Arrojadite-(KNa)	Steele I M (2002) Arrojadite: variations in space group and composition based on four new refinements General Meeting of the International Mineralogical Association 18 MO2-117	2002	Palermo No. 1 mine, Groton, New Hampshire, USA	293
0012657	Arrojadite-(KNa)	Steele I M (2002) Arrojadite: variations in space group and composition based on four new refinements General Meeting of the International Mineralogical Association 18 MO2-117	2002	Rapid Creek, Yukon, Canada	293
0004190	Arrojadite-(KNa)	Camara F, Oberti R, Chopin C, Medenbach O (2006) The arrojadite enigma: I. A new formula and a new model for the arrojadite structure American Mineralogist 91 1249-1259	2006		293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Arrojadite-(KNa)'
loop_
_publ_author_name
'Steele I M'
_journal_name_full 'General Meeting of the International Mineralogical Association'
_journal_volume 18 
_journal_year 2002
_journal_page_first MO2
_journal_page_last 117
_publ_section_title
;
 Arrojadite: variations in space group and composition
 based on four new refinements
 Sample: arropala
;
_database_code_amcsd 0012658
_chemical_compound_source 'Palermo No. 1 mine, Groton, New Hampshire, USA'
_chemical_formula_sum 'Al Sr.23 Ca.23 Fe11.69 Ba.06 K.68 Na4.459 Mg1.85 P12 O50'
_cell_length_a 16.531
_cell_length_b 10.0040
_cell_length_c 24.644
_cell_angle_alpha 90.00
_cell_angle_beta 105.943
_cell_angle_gamma 90.00
_cell_volume 3918.765
_exptl_crystal_density_diffrn      3.497
_symmetry_space_group_name_H-M 'C c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Al   0.26167   0.99887   0.20654   1.00000   0.00490
Sr   0.48669   0.71368   0.18636   0.23000   0.01368
Ca   0.48669   0.71368   0.18636   0.23000   0.01368
Fe   0.48669   0.71368   0.18636   0.54000   0.01368
Ba   0.75613   0.50461  -0.04781   0.06000   0.01970
K1A   0.75613   0.50461  -0.04781   0.51000   0.01970
K1B   0.76050   0.64460  -0.04410   0.17000   0.00820
Na1   0.28040   0.68320  -0.01886   0.58900   0.01870
Na2A   0.13450   0.01180   0.08591   0.94500   0.02470
Na2B   0.87846   0.48930   0.32899   0.94700   0.00980
Na3A   0.26140   0.50230   0.20652   0.99800   0.01150
Na3B   0.55256   0.05390   0.25049   0.98000   0.01160
Fe1   0.98516   0.88337   0.18470   0.96000   0.00750
Mg1   0.98516   0.88337   0.18470   0.04000   0.00750
Fe2A   0.04671   0.51112  -0.06381   0.98000   0.00960
Mg2A   0.04671   0.51112  -0.06381   0.02000   0.00960
Fe2B   0.47272   0.50570  -0.02527   0.91000   0.00670
Mg2B   0.47272   0.50570  -0.02527   0.09000   0.00670
Fe3A   0.37110   0.51504  -0.15429   0.52000   0.00550
Mg3A   0.37110   0.51504  -0.15429   0.48000   0.00550
Fe3B   0.15387   0.51177   0.06580   0.56000   0.00490
Mg3B   0.15387   0.51177   0.06580   0.44000   0.00490
Fe4A   0.23606   0.74611  -0.19800   0.82000   0.00470
Mg4A   0.23606   0.74611  -0.19800   0.18000   0.00470
Fe4B   0.27880   0.74836   0.10850   0.84000   0.00600
Mg4B   0.27880   0.74836   0.10850   0.16000   0.00600
Fe5A   0.22744   0.75219   0.30433   0.99000   0.00510
Mg5A   0.22744   0.75219   0.30433   0.01000   0.00510
Fe5B   0.79347   0.74065   0.10695   0.99000   0.00580
Mg5B   0.79347   0.74065   0.10695   0.01000   0.00580
Fe6A   0.05591   0.80261   0.35348   0.90000   0.00790
Mg6A   0.05591   0.80261   0.35348   0.10000   0.00790
Fe6B   0.96393   0.69474   0.05822   0.93000   0.00660
Mg6B   0.96393   0.69474   0.05822   0.07000   0.00660
Fe7A   0.48162   0.79830   0.04887   0.89000   0.00660
Mg7A   0.48162   0.79830   0.04887   0.11000   0.00660
Fe7B   0.04223   0.78902  -0.13981   0.86000   0.00640
Mg7B   0.04223   0.78902  -0.13981   0.14000   0.00640
P1A   0.87477   0.00588   0.07462   1.00000   0.00520
P1B   0.18060   0.49527  -0.12937   1.00000   0.00670
P2A   0.39013   0.95864   0.13120   1.00000   0.00530
P2B   0.13162   0.96699  -0.21767   1.00000   0.00490
P3A   0.13681   0.74684   0.16906   1.00000   0.00440
P3B   0.88714   0.74808   0.24583   1.00000   0.00500
P4A   0.65834   0.76867   0.16115   1.00000   0.00450
P4B   0.36724   0.73522   0.25388   1.00000   0.00540
P5A   0.88967   0.72444  -0.08280   1.00000   0.00580
P5B   0.12898   0.77651   0.49440   1.00000   0.00600
P6A   0.40234   0.79605  -0.08916   1.00000   0.00790
P6B   0.11464   0.79483   0.00011   1.00000   0.00790
O1A   0.23730   0.46790  -0.06651   1.00000   0.02200
O1B   0.94030   0.04010   0.13059   1.00000   0.01110
O2A   0.14700   0.63500   0.34113   1.00000   0.00690
O2B   0.87230   0.85250   0.06839   1.00000   0.00830
O3A   0.24030   0.56020  -0.15950   1.00000   0.01070
O3B   0.28680   0.55940   0.07475   1.00000   0.00680
O4A   0.10860   0.58280  -0.12411   1.00000   0.01640
O4B   0.40240   0.57520   0.02679   1.00000   0.01440
O5A   0.13410   0.84640  -0.17891   1.00000   0.00790
O5B   0.38640   0.83850   0.09027   1.00000   0.00860
O6A   0.38480   0.09490   0.10266   1.00000   0.00860
O6B   0.13970   0.10150  -0.18755   1.00000   0.00860
O7A   0.47010   0.93590   0.17945   1.00000   0.00970
O7B   0.05020   0.96300  -0.26660   1.00000   0.00780
O8A   0.30800   0.94120   0.15010   1.00000   0.00560
O8B   0.21090   0.94320  -0.23855   1.00000   0.00660
O9A   0.17550   0.66550   0.12955   1.00000   0.00680
O9B   0.84380   0.83320   0.28145   1.00000   0.00890
O10A   0.16620   0.89250   0.17222   1.00000   0.00690
O10B   0.85710   0.60270   0.24318   1.00000   0.00590
O11A   0.15950   0.68030   0.22693   1.00000   0.00760
O11B   0.86820   0.81190   0.18562   1.00000   0.00930
O12A   0.03940   0.75090   0.14521   1.00000   0.00690
O12B   0.98350   0.75490   0.26869   1.00000   0.01010
O13A   0.66590   0.81870   0.22086   1.00000   0.00750
O13B   0.35580   0.68560   0.19318   1.00000   0.00740
O14A   0.69460   0.87210   0.12729   1.00000   0.00630
O14B   0.33270   0.63070   0.28725   1.00000   0.00750
O15A   0.56640   0.73470   0.13112   1.00000   0.00930
O15B   0.46010   0.76500   0.27885   1.00000   0.00850
O16A   0.71450   0.64340   0.16005   1.00000   0.00520
O16B   0.31040   0.85830   0.25525   1.00000   0.00660
O17A   0.89460   0.87880  -0.08334   1.00000   0.01380
O17B   0.11840   0.62320   0.49746   1.00000   0.01760
O18A   0.80710   0.67770  -0.12400   1.00000   0.00920
O18B   0.21230   0.82170   0.53560   1.00000   0.01080
O19A   0.96220   0.66470  -0.10367   1.00000   0.01050
O19B   0.05530   0.84060   0.51341   1.00000   0.01250
O20A   0.89430   0.67290  -0.02411   1.00000   0.01290
O20B   0.12670   0.82170   0.43494   1.00000   0.01070
O21A   0.40680   0.84610  -0.03002   1.00000   0.03100
O21B   0.10210   0.85340  -0.05808   1.00000   0.02540
O22A   0.41210   0.64400  -0.08930   1.00000   0.00960
O22B   0.10910   0.64070  -0.00151   1.00000   0.00920
O23A   0.31880   0.83780  -0.12982   1.00000   0.00750
O23B   0.20150   0.83540   0.03764   1.00000   0.01390
O24A   0.47410   0.85900  -0.10990   1.00000   0.01830
O24B   0.04360   0.84980   0.02553   1.00000   0.01540
O25A   0.49340   0.49750  -0.15736   1.00000   0.00950
O25B   0.03050   0.49890   0.07229   1.00000   0.00770
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Al 0.00550 0.00280 0.00640 -0.00030 0.00180 0.00020
Sr 0.01490 0.01140 0.01480 0.00140 0.00430 0.00100
Ca 0.01490 0.01140 0.01480 0.00140 0.00430 0.00100
Fe 0.01490 0.01140 0.01480 0.00140 0.00430 0.00100
Ba 0.01200 0.02870 0.02140 0.00370 0.00940 0.00330
K1A 0.01200 0.02870 0.02140 0.00370 0.00940 0.00330
Na1 0.01500 0.02400 0.01700 0.01370 0.00510 0.01100
Na2A 0.04500 0.00620 0.01230 -0.00480 -0.00990 0.00190
Na2B 0.01550 0.00410 0.00740 -0.00180 -0.00100 0.00000
Na3A 0.01500 0.00580 0.01120 -0.00180 -0.00090 -0.00080
Na3B 0.00990 0.01290 0.00970 -0.00210 -0.00140 -0.00220
Fe1 0.00730 0.00600 0.00960 -0.00150 0.00270 -0.00320
Mg1 0.00730 0.00600 0.00960 -0.00150 0.00270 -0.00320
Fe2A 0.01410 0.00670 0.00690 -0.00190 0.00100 -0.00150
Mg2A 0.01410 0.00670 0.00690 -0.00190 0.00100 -0.00150
Fe2B 0.00810 0.00560 0.00540 -0.00050 -0.00010 -0.00050
Mg2B 0.00810 0.00560 0.00540 -0.00050 -0.00010 -0.00050
Fe3A 0.00700 0.00390 0.00530 0.00010 0.00120 -0.00060
Mg3A 0.00700 0.00390 0.00530 0.00010 0.00120 -0.00060
Fe3B 0.00600 0.00280 0.00500 0.00080 0.00010 0.00090
Mg3B 0.00600 0.00280 0.00500 0.00080 0.00010 0.00090
Fe4A 0.00630 0.00280 0.00470 0.00130 0.00080 0.00020
Mg4A 0.00630 0.00280 0.00470 0.00130 0.00080 0.00020
Fe4B 0.00580 0.00400 0.00740 0.00030 0.00070 -0.00050
Mg4B 0.00580 0.00400 0.00740 0.00030 0.00070 -0.00050
Fe5A 0.00590 0.00400 0.00500 0.00000 0.00070 -0.00100
Mg5A 0.00590 0.00400 0.00500 0.00000 0.00070 -0.00100
Fe5B 0.00640 0.00460 0.00600 -0.00020 0.00090 0.00060
Mg5B 0.00640 0.00460 0.00600 -0.00020 0.00090 0.00060
Fe6A 0.00930 0.00840 0.00550 -0.00090 0.00140 0.00040
Mg6A 0.00930 0.00840 0.00550 -0.00090 0.00140 0.00040
Fe6B 0.00850 0.00590 0.00520 0.00040 0.00150 0.00020
Mg6B 0.00850 0.00590 0.00520 0.00040 0.00150 0.00020
Fe7A 0.00850 0.00710 0.00400 0.00270 0.00100 -0.00070
Mg7A 0.00850 0.00710 0.00400 0.00270 0.00100 -0.00070
Fe7B 0.00780 0.00620 0.00480 -0.00140 0.00110 0.00080
Mg7B 0.00780 0.00620 0.00480 -0.00140 0.00110 0.00080
P1A 0.00720 0.00350 0.00520 -0.00010 0.00180 -0.00050
P1B 0.00950 0.00440 0.00690 -0.00150 0.00350 -0.00050
P2A 0.00730 0.00330 0.00530 0.00000 0.00160 0.00040
P2B 0.00610 0.00350 0.00450 -0.00050 0.00080 -0.00050
P3A 0.00560 0.00340 0.00410 0.00030 0.00080 0.00040
P3B 0.00580 0.00330 0.00570 -0.00080 0.00100 -0.00020
P4A 0.00610 0.00280 0.00450 -0.00010 0.00160 -0.00070
P4B 0.00710 0.00340 0.00480 0.00060 0.00020 0.00090
P5A 0.00860 0.00370 0.00460 0.00150 0.00080 -0.00040
P5B 0.00640 0.00440 0.00690 -0.00060 0.00140 0.00030
P6A 0.01140 0.00240 0.00770 0.00040 -0.00110 -0.00050
P6B 0.00790 0.00540 0.00760 -0.00160 -0.00260 0.00000
O1A 0.02000 0.03800 0.00630 -0.00400 0.00150 0.00370
O1B 0.01400 0.00710 0.00920 0.00150 -0.00140 -0.00080
O2A 0.01000 0.00330 0.00780 0.00190 0.00280 0.00040
O2B 0.01100 0.00530 0.01040 -0.00110 0.00500 0.00000
O3A 0.01300 0.00750 0.01340 -0.00200 0.00700 -0.00150
O3B 0.00520 0.00540 0.00940 0.00010 0.00130 -0.00340
O4A 0.02100 0.00910 0.02500 0.00180 0.01570 -0.00020
O4B 0.02100 0.01200 0.01440 0.00410 0.01220 0.00480
O5A 0.01100 0.00570 0.00760 -0.00180 0.00410 -0.00090
O5B 0.01100 0.00490 0.01100 -0.00240 0.00480 -0.00670
O6A 0.01100 0.00510 0.01160 0.00200 0.00520 0.00200
O6B 0.01200 0.00620 0.00750 0.00050 0.00240 0.00090
O7A 0.00800 0.01170 0.00840 0.00380 0.00120 0.00330
O7B 0.01100 0.00480 0.00580 -0.00280 -0.00070 0.00080
O8A 0.00450 0.00570 0.00840 -0.00240 0.00500 -0.00070
O8B 0.00800 0.00470 0.00570 -0.00110 -0.00130 0.00030
O9A 0.00800 0.00560 0.00780 0.00080 0.00300 -0.00180
O9B 0.01200 0.00670 0.00980 -0.00140 0.00590 0.00040
O10A 0.01200 0.00180 0.00700 0.00190 0.00210 0.00180
O10B 0.00590 0.00520 0.00550 -0.00160 -0.00070 -0.00190
O11A 0.01000 0.00800 0.00530 -0.00140 0.00200 -0.00220
O11B 0.01200 0.00700 0.00870 -0.00010 0.00190 0.00430
O12A 0.00440 0.00600 0.01100 -0.00260 0.00310 -0.00320
O12B 0.01000 0.00490 0.01400 0.00050 0.00160 -0.00280
O13A 0.01200 0.00390 0.00690 0.00240 0.00360 -0.00030
O13B 0.01100 0.00600 0.00550 0.00070 0.00230 -0.00210
O14A 0.00690 0.00550 0.00520 -0.00030 -0.00030 0.00160
O14B 0.01200 0.00420 0.00680 0.00070 0.00440 -0.00030
O15A 0.00400 0.01030 0.01170 -0.00010 -0.00060 -0.00120
O15B 0.00700 0.00670 0.01040 -0.00240 0.00050 0.00150
O16A 0.00780 0.00190 0.00580 0.00060 0.00190 -0.00160
O16B 0.00800 0.00500 0.00520 0.00150 -0.00070 0.00140
O17A 0.01800 0.00560 0.01230 0.00130 -0.00580 0.00000
O17B 0.02700 0.00470 0.01400 0.00060 -0.00700 0.00280
O18A 0.01000 0.00890 0.00790 0.00120 0.00090 -0.00020
O18B 0.00900 0.00880 0.01030 -0.00300 -0.00400 0.00480
O19A 0.00900 0.01200 0.01080 0.00140 0.00210 -0.00430
O19B 0.00900 0.01900 0.00980 0.00420 0.00390 -0.00230
O20A 0.01400 0.01500 0.00930 -0.00570 0.00340 0.00040
O20B 0.01600 0.01170 0.00400 -0.00120 0.00240 0.00140
O21A 0.05300 0.02000 0.01000 0.02500 -0.00900 -0.00510
O21B 0.03900 0.01800 0.00900 -0.01900 -0.01000 0.00770
O22A 0.01800 0.00010 0.00910 -0.00320 0.00060 0.00150
O22B 0.01200 0.00580 0.00790 -0.00400 0.00000 0.00060
O23A 0.01400 0.00300 0.00500 0.00050 0.00210 -0.00210
O23B 0.01500 0.01300 0.01200 -0.00770 0.00000 0.00060
O24A 0.01000 0.01100 0.02800 -0.00380 -0.00440 0.00650
O24B 0.01200 0.01000 0.02200 0.00390 -0.00010 -0.00760
O25A 0.00600 0.01100 0.01200 -0.00170 0.00290 -0.00520
O25B 0.01200 0.00250 0.00700 -0.00220 0.00010 -0.00100

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
34 : Complex granite pegmatites

Type Occurrence of Arrojadite-(KNa)Hide

Type Locality:

ⓘ Rapid Creek, Dawson mining district, Yukon, Canada

General Appearance of Type Material:

Clear, yellow, mm-sized euhedral crystals. Stout, more-or-less platy prisms.

Place of Conservation of Type Material:

Ecole Nationale Supérieure des Mines, Paris, France, 41081.

Geological Setting of Type Material:

In open fractures in siderite-rich Lower Cretaceous sandstones. From low-salinity fluids, under very low-grade metamorphic conditions, at minimum temperatures of 180-200 C.

Associated Minerals at Type Locality:

'Limonite'

Quartz

Synonyms of Arrojadite-(KNa)Hide

IMA2005-047

Other Language Names for Arrojadite-(KNa)Hide

Dutch:Arrojadiet-(KNa)

French:Arrojadite-(KNa)

German:Arrojadit-(KNa)

Norwegian:Arrojaditt-(KNa)

Russian:Арроядит-(KNa)

Relationship of Arrojadite-(KNa) to other SpeciesHide

Member of:

Arrojadite Group

Other Members of Arrojadite Group:

Arrojadite-(BaNa)	(Ba◻)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. 2/m : B2/b
Arrojadite-(KFe)	(KNa)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
'Arrojadite-(KFeNa)'	(KNa)(Fe²⁺◻)Ca(Na₂Na)Fe²⁺₁₃Al(PO₄)₁₁(PO₄)(OH)₂
'Arrojadite-(NaFe)'	(NaNa)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂
Arrojadite-(PbFe)	(Pb◻)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
Arrojadite-(SrFe)	(Sr◻)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
Dickinsonite-(KMnNa)	(KNa)(Mn²⁺◻)Ca(Na₂Na)Mn²⁺₁₃Al(PO₄)₁₁(PO₄)(OH)₂	Mon. 2/m : B2/b
'Ferri-arrojadite-(BaNa)'	(Ba◻)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Fe³⁺(PO₄)₁₁(PO₃OH)(OH)₂
Fluorarrojadite-(BaFe)	(Ba◻)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂	Mon. m : Bb
Fluorarrojadite-(BaNa)	(Ba◻)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂	Mon. m : Bb
'Fluorarrojadite-(KNa)'	(KNa)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂
'Fluorarrojadite-(NaFe)'	(NaNa)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂
Fluorcarmoite-(BaNa)	(Ba◻)(NaNa)Ca(Na₂◻)Mg₁₃Al(PO₄)₁₁(PO₃OH)F₂	Mon. m : Bb
Manganoarrojadite-(KNa)	(KNa)(NaNa)Mn²⁺(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
Sigismundite	(Ba◻)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb

Common AssociatesHide

Associations Based on Photo Data:

1 photo of Arrojadite-(KNa) associated with Whitlockite	Ca₉Mg(PO₄)₆(PO₃OH)
1 photo of Arrojadite-(KNa) associated with Kulanite	Ba(Fe²⁺,Mn²⁺,Mg)₂(Al,Fe³⁺)₂(PO₄)₃(OH)₃

Related Minerals - Strunz-mindat Grouping Hide

8.BF.	Manganoarrojadite-(KNa)	(KNa)(NaNa)Mn²⁺(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
8.BF.	Sigismundite	(Ba◻)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
8.BF.05	Dickinsonite-(KMnNa)	(KNa)(Mn²⁺◻)Ca(Na₂Na)Mn²⁺₁₃Al(PO₄)₁₁(PO₄)(OH)₂	Mon. 2/m : B2/b
8.BF.05	Fluorarrojadite-(BaNa)	(Ba◻)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂	Mon. m : Bb
8.BF.05	Arrojadite-(KFe)	(KNa)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
8.BF.05	Arrojadite-(PbFe)	(Pb◻)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
8.BF.05	Fluorarrojadite-(BaFe)	(Ba◻)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂	Mon. m : Bb
8.BF.05	'Unnamed (Ba-dominant member of dickinsonite group)'
8.BF.05	'Unnamed (Pb-dominant member of dickinsonite group)'
8.BF.05	Arrojadite-(SrFe)	(Sr◻)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. m : Bb
8.BF.05	'Arrojadite-(NaFe)'	(NaNa)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂
8.BF.05	Arrojadite-(BaNa)	(Ba◻)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂	Mon. 2/m : B2/b
8.BF.05	'Arrojadite-(KFeNa)'	(KNa)(Fe²⁺◻)Ca(Na₂Na)Fe²⁺₁₃Al(PO₄)₁₁(PO₄)(OH)₂
8.BF.05	'Ferri-arrojadite-(BaNa)'	(Ba◻)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Fe³⁺(PO₄)₁₁(PO₃OH)(OH)₂
8.BF.05	'Fluorarrojadite-(KNa)'	(KNa)(NaNa)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂
8.BF.05	'Fluorarrojadite-(NaFe)'	(NaNa)(Fe²⁺◻)Ca(Na₂◻)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂
8.BF.05	Fluorcarmoite-(BaNa)	(Ba◻)(NaNa)Ca(Na₂◻)Mg₁₃Al(PO₄)₁₁(PO₃OH)F₂	Mon. m : Bb
8.BF.10	Samuelsonite	(Ca,Ba)Ca₈Fe²⁺₂Mn²⁺₂Al₂(PO₄)₁₀(OH)₂	Mon. 2/m : B2/m
8.BF.15	Griphite	Na₄Li₂Ca₆(Mn²⁺,Fe²⁺,Mg)₁₉Al₈(PO₄)₂₄(F,OH)₈	Iso. m3(2/m3) : Pa3
8.BF.20	Nabiasite	BaMn₉(VO₄)₆(OH)₂	Iso. m3(2/m3) : Pa3
8.BF.25	Starovaite	KCu₅O(VO₄)₃	Tric. 1 : P1
8.BF.30	Achyrophanite	(K,Na)₃(Fe³⁺,Ti,Al,Mg)₅O₂(AsO₄)₅	Orth. 222 : P222₁
8.BF.35	Cryptochalcite	K₂Cu₅O(SO₄)₅	Tric. 1 : P1
8.BF.35	Cesiodymite	CsKCu₅O(SO₄)₅	Tric. 1 : P1

RadioactivityHide

Other InformationHide

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Arrojadite-(KNa)Hide

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for Arrojadite-(KNa)Hide

Reference List:

Camara, F. (2006) The arrojadite enigma: I. A new formula and a new model for the arrojadite structure. American Mineralogist, 91 (8) 1249-1259 doi:10.2138/am.2006.2189

Chopin, Christian, Oberti, Roberta, Cámara, Fernando (2006) The arrojadite enigma: II. Compositional space, new members, and nomenclature of the group. American Mineralogist, 91 (8). 1260-1270 doi:10.2138/am.2006.2190

(2022) Arrojadite-(KNa). Handbook of Mineralogy. Mineralogical Society of America

Localities for Arrojadite-(KNa)Hide

Showing 4 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

Hide all sections | Show all sections

Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Canada
Yukon Dawson mining district ⓘ Big Fish River	Anatoly Kasatkin
ⓘ Rapid Creek (TL)	Camara (2006) +1 other reference

Italy
Lombardy Lecco Province Colico Piona Peninsula ⓘ Malpensata pegmatitic dyke (Olgiasca-Malpensata; Croce Quarry; Secondi dyke)	Vignola et al. (2011)

USA
South Dakota Custer County Custer Mining District Custer ⓘ Victory Mine	Chopin et al. (2006)

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Arrojadite-(KNa)

About Arrojadite-(KNa)Hide

Unique IdentifiersHide

Similar NamesHide

IMA Classification of Arrojadite-(KNa)Hide

Classification of Arrojadite-(KNa)Hide

Mineral SymbolsHide

Physical Properties of Arrojadite-(KNa)Hide

Optical Data of Arrojadite-(KNa)Hide

Chemistry of Arrojadite-(KNa)Hide

Crystallography of Arrojadite-(KNa)Hide

Crystal StructureHide

Geological EnvironmentHide

Type Occurrence of Arrojadite-(KNa)Hide

Synonyms of Arrojadite-(KNa)Hide

Other Language Names for Arrojadite-(KNa)Hide

Relationship of Arrojadite-(KNa) to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

RadioactivityHide

Other InformationHide

Internet Links for Arrojadite-(KNa)Hide

References for Arrojadite-(KNa)Hide

Localities for Arrojadite-(KNa)Hide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide