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Arrojadite-(BaNa)

A valid IMA mineral species
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07592790014977627758619.jpg
Arrojadite-(BaNa), etc.

Luna pegmatitic dyke, Dorio, Lecco Province, Lombardy, Italy
06961880015235814823507.jpg
Arrojadite-(BaNa), etc.

Big Fish River, Dawson mining district, Yukon, Canada
09665840017062929535583.jpg
Arrojadite-(BaNa), etc.

Luna pegmatitic dyke, Dorio, Lecco Province, Lombardy, Italy
08740440014947008474693.jpg
Arrojadite-(BaNa), etc.

Luna pegmatitic dyke, Dorio, Lecco Province, Lombardy, Italy
06317300015235808102054.jpg
Arrojadite-(BaNa), etc.

Big Fish River, Dawson mining district, Yukon, Canada
03701930017058306404828.jpg
Arrojadite-(BaNa), etc.

Luna pegmatitic dyke, Dorio, Lecco Province, Lombardy, Italy
09049510014976320073337.jpg
Arrojadite-(BaNa), etc.

Luna pegmatitic dyke, Dorio, Lecco Province, Lombardy, Italy
06961880015235814823507.jpg
Arrojadite-(BaNa), etc.

Big Fish River, Dawson mining district, Yukon, Canada
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About Arrojadite-(BaNa)Hide

Formula:
(Ba◻)(NaNa)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2
Colour:
Greenish, yellowish
Hardness:
4 - 5
Specific Gravity:
3.54
Crystal System:
Monoclinic
Name:
Named according to the recommended nomenclature for the arrojadite group, and it being the Ba-Na-rich member of the group. The root name is for Miguel Arrojado Lisbôa, Brazilian geologist.
The Na-, Ba-rich member of the arrojadite group.



Unique IdentifiersHide

Mindat ID:
29414
Long-form identifier:
mindat:1:1:29414:6
GUID
(UUID V4):
c0a38e41-5dfb-4d3b-9911-16205f661f85

IMA Classification of Arrojadite-(BaNa)Hide

Classification of Arrojadite-(BaNa)Hide

Strunz-mindat (2024):
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.

SymbolSourceReference
Ajd-BaNaIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Arrojadite-(BaNa)Hide

Transparency:
Translucent
Colour:
Greenish, yellowish
Hardness:
4 - 5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
parallel to {110}
Fracture:
Irregular/Uneven
Density:
3.54 g/cm3 (Measured)    

Optical Data of Arrojadite-(BaNa)Hide

Type:
Biaxial (+)
RI values:
nα = 1.656(2) nβ = 1.660(2) nγ = 1.664(2)
2V:
Measured: 44° (1), Calculated: 45°
Max Birefringence:
δ = 0.008
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
moderate

Chemistry of Arrojadite-(BaNa)Hide

Mindat Formula:
(Ba◻)(NaNa)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2
Elements listed:
Al, Ba, Ca, Fe, H, Na, O, P - search for minerals with similar chemistry

Crystallography of Arrojadite-(BaNa)Hide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 16.4984(6) Å, b = 10.0228(3) Å, c = 24.648(1) Å
β = 105.850(4)°
Ratio:
a:b:c = 1.646 : 1 : 2.459
Unit Cell V:
3920.8 ų
Z:
4
Morphology:
Masses, or rough crystals up to 4–5 cm in diameter
Comment:
Tomes et al. 2018 give the space group as Cc.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.621 Å(22)
3.488 Å(28)
3.303 Å(46)
3.137 Å(100)
2.936 Å(22)
2.878 Å(32)
2.818 Å(61)
2.667 Å(35)
Comments:
From Type Description

Geological EnvironmentHide

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

Type Occurrence of Arrojadite-(BaNa)Hide

Type Locality:
ⓘ Luna pegmatitic dyke, Dorio, Lecco Province, Lombardy, Italy
General Appearance of Type Material:
Greenish or yellowish translucent masses, or rough crystals up to 4–5 cm in diameter hosted by albite.
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Museo Civico di Storia Naturale, Milano, Italy,sample number 38718, and the Laboratory of Mineralogy, University of Liège, Liège, Belgium, sample number 20391.
Geological Setting of Type Material:
Pegmatite
Associated Minerals at Type Locality:
FluorapatiteAlbite
Reference:
Vignola, P., Hatert, F., Baijot, M., Dal Bo, F., Andò, S., Bersani, D., Pavese, A., Risplendente, A., Vanini, F. (2016): Arrojadite-(BaNa), BaNa3(Na,Ca)Fe^2+13Al(PO4)11(PO3OH)(OH)2, A New Phosphate Mineral From the Luna Albite Pegmatite, Dorio Commune, Lecco Province, Italy. Canadian Mineralogist: 54: 1021-1032.

Synonyms of Arrojadite-(BaNa)Hide

Other Language Names for Arrojadite-(BaNa)Hide

Relationship of Arrojadite-(BaNa) to other SpeciesHide

Member of:
Arrojadite Group
Other Members of this group:
Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
Arrojadite-(KFeNa)(KNa)(Fe2+◻)Ca(Na2Na)Fe2+13Al(PO4)11(PO4)(OH)2
Arrojadite-(KNa)(KNa)(NaNa)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
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)2Mon. m : Bb
Arrojadite-(SrFe)(Sr◻)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn2+13Al(PO4)11(PO4)(OH)2Mon. 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)F2Mon. m : Bb
Fluorarrojadite-(BaNa)(Ba◻)(NaNa)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)F2Mon. 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)F2Mon. m : Bb
Manganoarrojadite-(KNa)(KNa)(NaNa)Mn2+(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
Sigismundite(Ba◻)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Arrojadite-(BaNa) associated with FluorapatiteCa5(PO4)3F
2 photos of Arrojadite-(BaNa) associated with SideriteFeCO3
2 photos of Arrojadite-(BaNa) associated with MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
1 photo of Arrojadite-(BaNa) associated with Childrenite-Eosphorite Series
1 photo of Arrojadite-(BaNa) associated with Feldspar Group
1 photo of Arrojadite-(BaNa) associated with QuartzSiO2

Related Minerals - Strunz-mindat GroupingHide

8.BF.Sigismundite(Ba◻)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
8.BF.Manganoarrojadite-(KNa)(KNa)(NaNa)Mn2+(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
8.BF.05Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
8.BF.05Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn2+13Al(PO4)11(PO4)(OH)2Mon. 2/m : B2/b
8.BF.05Arrojadite-(SrFe)(Sr◻)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
8.BF.05Arrojadite-(KNa)(KNa)(NaNa)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
8.BF.05Arrojadite-(PbFe)(Pb◻)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2Mon. m : Bb
8.BF.05Fluorarrojadite-(BaFe)(Ba◻)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)F2Mon. m : Bb
8.BF.05Arrojadite-(KFeNa)(KNa)(Fe2+◻)Ca(Na2Na)Fe2+13Al(PO4)11(PO4)(OH)2
8.BF.05Arrojadite-(NaFe)(NaNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2
8.BF.05Ferri-arrojadite-(BaNa)(Ba◻)(NaNa)Ca(Na2◻)Fe2+13Fe3+(PO4)11(PO3OH)(OH)2
8.BF.05Fluorarrojadite-(KNa)(KNa)(NaNa)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)F2
8.BF.05Fluorarrojadite-(NaFe)(NaNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)F2
8.BF.05Fluorcarmoite-(BaNa)(Ba◻)(NaNa)Ca(Na2◻)Mg13Al(PO4)11(PO3OH)F2Mon. m : Bb
8.BF.05Unnamed (Ba-dominant member of dickinsonite group)
8.BF.05Unnamed (Pb-dominant member of dickinsonite group)
8.BF.05Fluorarrojadite-(BaNa)(Ba◻)(NaNa)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)F2Mon. m : Bb
8.BF.10Samuelsonite(Ca,Ba)Ca8Fe2+2Mn2+2Al2(PO4)10(OH)2Mon. 2/m : B2/m
8.BF.15GriphiteNa4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8Iso. m3 (2/m 3) : Pa3
8.BF.20NabiasiteBaMn9(VO4)6(OH)2Iso. m3 (2/m 3) : Pa3
8.BF.25StarovaiteKCu5O(VO4)3 Tric. 1 : P1
8.BF.30Achyrophanite(K,Na)3(Fe3+,Ti,Al,Mg)5O2(AsO4)5Orth. 2 2 2 : P2 2 21
8.BF.35CryptochalciteK2Cu5O(SO4)5Tric. 1 : P1
8.BF.35CesiodymiteCsKCu5O(SO4)5Tric. 1 : P1

Fluorescence of Arrojadite-(BaNa)Hide

In UV light:
Non-fluorescent under both short-wave (254 nm) and long-wave (366 nm) ultraviolet light

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-(BaNa)Hide

References for Arrojadite-(BaNa)Hide

Localities for Arrojadite-(BaNa)Hide

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.

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.
Austria
 
  • Styria
    • Murau District
      • Stadl-Predlitz
Bojar (2019)
Canada
 
  • Yukon
    • Dawson mining district
Pavel.M. Kartashov (n.d.) +1 other reference
Italy (TL)
 
  • Lombardy
    • Lecco Province
      • Dorio
Williams et al. (2015) +2 other references
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