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Arrojadite-(BaNa)

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Formula:
BaNa3(NaCa)Fe2+13Al(PO4)11(PO3OH)(OH)
Colour:
Greenish, yellowish
Hardness:
4 - 5
Specific Gravity:
3.54
Crystal System:
Monoclinic
Name:
For Miguel Arrojado Lisbôa, Brazilian geologist and its correspondance to the Ba-Na-rich member of the arrojadite mineral group.
The Na-, Ba-rich member of the arrojadite group. Ba is the principal element at the X5 (= A1) site and MFe* ≤ 0.5 apfu. Sodium is the unique element at the cation X1 (= Ca) site.




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Classification of Arrojadite-(BaNa)Hide

Approved
Approval Year:
2014
First Published:
2016
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

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

RI values:
nα = 1.656(2) nβ = 1.660(2) nγ = 1.664(2)
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
Type:
Anisotropic

Chemical Properties of Arrojadite-(BaNa)Hide

Formula:
BaNa3(NaCa)Fe2+13Al(PO4)11(PO3OH)(OH)

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

X-Ray Powder DiffractionHide

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

Occurrences of Arrojadite-(BaNa)Hide

Paragenetic Mode(s):

Type Occurrence of Arrojadite-(BaNa)Hide

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:
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

Other Members of this group:
Arrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
Arrojadite-(KFeNa){KNa}{Fe2+◻}{Ca}{Na3}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
Arrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(PbFe){Pb◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
Arrojadite-(SrFe){Sr◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2Mon. 2/m : B2/b
Ferri-arrojadite-(BaNa){Ba◻}{Na2}{Ca}{Na2◻}{Fe2+13}{Fe3+}(PO4)11(HPO4)(OH)2
Fluorarrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2Mon. m : Bb
Fluorarrojadite-(BaNa)BaNa4CaFe13Al(PO4)11(PO3OH)F2Mon. m : Bb
Fluorarrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2
Fluorarrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2
Fluorcarmoite-(BaNa)Ba□Na2Na2□CaMg13Al(PO4)11(PO3OH)F2Mon. m : Bb

Common AssociatesHide

Associated Minerals Based on Photo Data:
Childrenite-Eosphorite Series1 photo of Arrojadite-(BaNa) associated with Childrenite-Eosphorite Series on mindat.org.
Feldspar Group1 photo of Arrojadite-(BaNa) associated with Feldspar Group on mindat.org.
Fluorapatite1 photo of Arrojadite-(BaNa) associated with Fluorapatite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BF.05Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
8.BF.05Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2Mon. 2/m : B2/b
8.BF.05Arrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
8.BF.05Arrojadite-(SrFe){Sr◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
8.BF.05Arrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
8.BF.05Arrojadite-(PbFe){Pb◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon. m : Bb
8.BF.05Fluorarrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2Mon. m : Bb
8.BF.05Arrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
8.BF.05Fluorarrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2
8.BF.05Fluorarrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)F2
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)
8.BF.20NabiasiteBaMn2+9(VO4,AsO4)6(OH)2Iso.

Fluorescence of Arrojadite-(BaNa)Hide

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.

References for Arrojadite-(BaNa)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Vignola, P., Hatert, F., Baijot, M., Dal Bo, F., Andò , S., Bersani, D., Risplendente, A. and Vanini, F. (2015) Arrojadite-(BaNa), IMA 2014-071. CNMNC Newsletter No. 23, February 2015, page 55; Mineralogical Magazine, 79: 51-58.
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.

Internet Links 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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada
 
  • Yukon
    • Dawson Mining District
Pavel M. Kartashov analytical data
Italy (TL)
 
  • Lombardy
    • Lecco Province
      • Dorio
Vignola, P., Hatert, F., Baijot, M., Dal Bo, F., Andò , S., Bersani, D., Risplendente, A. and Vanini, F. (2015) Arrojadite-(BaNa), IMA 2014-071. CNMNC Newsletter No. 23, February 2015, page 55; Mineralogical Magazine, 79, 51-58.; 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.
Mineral and/or Locality  
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