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Natrodufrénite

A valid IMA mineral species
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About NatrodufréniteHide

Formula:
NaFe2+Fe3+5(PO4)4(OH)6 · 2H2O
Colour:
Greenish brown
Hardness:
3½ - 4½
Specific Gravity:
3.20
Crystal System:
Monoclinic
Name:
For being the Na analogue of dufrénite.
Isostructural with:
The Na analogue of dufrénite (which is distinctly less common by comparison, and visually indistinguishable from natrodufrénite) and the ferrous iron analogue of gayite.


Unique IdentifiersHide

Mindat ID:
2854
Long-form identifier:
mindat:1:1:2854:3
GUID
(UUID V4):
7d38a435-25c1-49bf-9029-019b6ba44b41

IMA Classification of NatrodufréniteHide

Classification of NatrodufréniteHide

8.DK.15

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
42.9.1.3

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
9 : (AB)7(XO4)4Zq·xH2O
19.14.6

19 : Phosphates
14 : Phosphates of Fe and other metals

Mineral SymbolsHide

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

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

Physical Properties of NatrodufréniteHide

Transparency:
Translucent
Colour:
Greenish brown
Streak:
Green
Hardness:
3½ - 4½ on Mohs scale
Tenacity:
Brittle
Density:
3.20(3) g/cm3 (Measured)    3.23 g/cm3 (Calculated)

Optical Data of NatrodufréniteHide

Type:
Biaxial (+)
RI values:
nα = 1.756 nγ = 1.775
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
distinct to strong
Pleochroism:
Visible
Comments:
X = pale yellow; Z = dark green.

Chemistry of NatrodufréniteHide

Mindat Formula:
NaFe2+Fe3+5(PO4)4(OH)6 · 2H2O

Crystallography of NatrodufréniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 25.83(2) Å, b = 5.150(3) Å, c = 13.772(9) Å
β = 111.53°
Ratio:
a:b:c = 5.016 : 1 : 2.674
Unit Cell V:
1,704.19 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Radially fibrous spherulites, to 5 mm, may be in warty nodules.
Comment:
By analogy to dufrénite.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
12.04 Å(80)
5.040 Å(60)
4.124 Å(50)
3.400 Å(80)
3.204 Å(80)
3.152 Å(100)
2.989 Å(50)
Comments:
Close to dufrénite.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]

Type Occurrence of NatrodufréniteHide

General Appearance of Type Material:
Blue-green spheres of compact radiating fibers up to 0.5 cm in diameter.
Place of Conservation of Type Material:
Natural History Museum, Paris, France, 106384, 106385.
National School of Mines, Paris, France, 18329.
Geological Setting of Type Material:
Limonitic ore bed; formed by low temperature, supergene alteration.
Associated Minerals at Type Locality:
Reference:
Fontan, F., Pillard, F., Permingeat, F. (1982) La natrodufrénite (Na,▯)(Fe+++,Fe++)(Fe+++,Al)5(PO4)4(OH)6.2H2O, une nouvelle espèce minérale du groupe de la dufrénite. Bulletin de Minéralogie, 105, 321-326.

Synonyms of NatrodufréniteHide

Other Language Names for NatrodufréniteHide

Relationship of Natrodufrénite to other SpeciesHide

Other Members of this group:
BimbowrieiteNaMgFe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
BurangaiteNaFe2+Al5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
DufréniteCa0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
GayiteNaMn2+Fe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
MatioliiteNaMgAl5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b

Common AssociatesHide

Associated Minerals Based on Photo Data:
26 photos of Natrodufrénite associated with CyriloviteNaFe3+3(PO4)2(OH)4 · 2H2O
19 photos of Natrodufrénite associated with KidwelliteNaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33
13 photos of Natrodufrénite associated with StrengiteFePO4 · 2H2O
12 photos of Natrodufrénite associated with LeucophosphiteKFe3+2(PO4)2(OH) · 2H2O
10 photos of Natrodufrénite associated with CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2O
7 photos of Natrodufrénite associated with WavelliteAl3(PO4)2(OH,F)3 · 5H2O
6 photos of Natrodufrénite associated with QuartzSiO2
3 photos of Natrodufrénite associated with KapundaiteNaCaFe4(PO4)4(OH)3 · 5H2O
2 photos of Natrodufrénite associated with AutuniteCa(UO2)2(PO4)2 · 10-12H2O
2 photos of Natrodufrénite associated with XanthoxeniteCa4Fe3+2(PO4)4(OH)2 · 3H2O

Related Minerals - Strunz-mindat GroupingHide

8.DK.RichelsdorfiteCa2Cu5Sb(AsO4)4(OH)6Cl · 6H2OMon. 2/m : B2/m
8.DK.BimbowrieiteNaMgFe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.PuttapaitePb2Mn2+2ZnCr3+4O2(AsO4)4(OH)6 · 12H2OMon. 2/m : B2/m
8.DK.10BariopharmacosideriteBa0.5Fe3+4(AsO4)3(OH)4 · 5H2OTet. 4 2m : P4 2m
8.DK.10PharmacosideriteKFe3+4(AsO4)3(OH)4 · 6-7H2OIso. 4 3m : P4 3m
8.DK.10NatropharmacosideriteNaFe3+4(AsO4)3(OH)4 · 4H2OIso. 4 3m : P4 3m
8.DK.10Hydroniumpharmacosiderite(H3O)Fe4(AsO4)3(OH)4 · 4H2OIso. 4 3m : P4 3m
8.DK.10StrontiopharmacosideriteSr0.5Fe4[(AsO4)3(OH)4] · 4H2O Tet. 4 2m : P4 2m
8.DK.10ThalliumpharmacosideriteTlFe4[(AsO4)3(OH)4] · 4H2OIso. 4 3m : F4 3m
8.DK.10PlumbopharmacosideritePb0.5Fe3+4(AsO4)3(OH)4 · 5H2OIso. 4 3m : P4 3m
8.DK.12PharmacoalumiteKAl4(AsO4)3(OH)4 · 6.5H2OIso. 4 3m : P4 3m
8.DK.12NatropharmacoalumiteNaAl4(AsO4)3(OH)4 · 4H2OIso. 4 3m : P4 3m
8.DK.12BariopharmacoalumiteBa0.5Al4(AsO4)3(OH)4 · 4H2OIso. 4 3m : P4 3m
8.DK.12Hydroniumpharmacoalumite(H3O)Al4(AsO4)3(OH)4 · 4.5H2OIso. 4 3m : P4 3m
8.DK.15BurangaiteNaFe2+Al5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.15DufréniteCa0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.15MatioliiteNaMgAl5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.15GayiteNaMn2+Fe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.20KidwelliteNaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33Mon. 2/m : P2/b
8.DK.25Bleasdaleite(Ca,Fe3+)2Cu5(Bi,Cu)(PO4)4(H2O,OH,Cl)13Mon. 2/m : B2/m
8.DK.30Matulaite(Fe3+,Al)Al7(PO4)4(PO3OH)2(OH)8(H2O)8 · 8H2OMon. 2/m
8.DK.35KrasnoviteBa(Al,Mg)(PO4,CO3)(OH)2 · H2OOrth. mmm (2/m 2/m 2/m)

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 NatrodufréniteHide

References for NatrodufréniteHide

Localities for NatrodufréniteHide

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.
Argentina
 
  • Córdoba Province
    • Cruz del Eje department
      • Candelaria District
Kampf et al. (2010)
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill district
        • Broken Hill
          • Broken Hill South Mine (BHS Mine; South Mine)
Birch et al. (1997)
Day (1998)
  • Queensland
    • City of Mount Isa
      • Gunpowder District
        • Mount Gordon
Day et al. (1996)
    • Cloncurry Shire
      • Cloncurry
Derrick
  • South Australia
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Barossa Valley
          • Penrice
Peter Elliott
        • Kapunda
Vince Peisley specimen
        • Robertstown
Peter Elliott
    • Olary Province
      • Ameroo Hill
Australian Journal of Mineralogy
Australian Journal of Mineralogy
  • Victoria
    • City of Greater Shepparton
      • Dookie
        • Ascot Hills
    • Mount Alexander Shire
      • Castlemaine
        • Campbells Creek
P. Sutton (2007)
    • Swan Hill Rural City
      • Lake Boga
Birch (1996)
Austria
 
  • Lower Austria
    • Gmünd District
      • Großdietmanns
        • Unterlembach
Brandstätter et al. (1990) +1 other reference
Brazil
 
  • Minas Gerais
    • Conselheiro Pena
      • Barra do Cuieté
Sergio Varvello collection
    • Galiléia
      • Sapucaia do Norte
Sergio Varvello collection
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Mejillones
        • Mejillones peninsula
XRD by Gerhard Möhn
    • El Loa Province
      • Calama
        • Chuquicamata District
maurizio dini collection - analysed ...
  • Atacama
    • Chañaral Province
      • Diego de Almagro
        • El Salvador mining district
maurizio dini collection - analysed ...
  • Tarapacá
    • Tamarugal Province
      • Pica
        • Collahuasi mining district
Sulphides analysed by geology dep. of ... +1 other reference
Czech Republic
 
  • Karlovy Vary Region
    • Sokolov District
      • Krásno
Sejkora et al. (2006)
Sejkora et al. (2006)
        • Vysoký Kámen
Sejkora
  • Liberec Region
    • Semily District
Škoda
  • South Bohemian Region
    • Písek District
      • Čížová
Sejkora J. et al. (Česká republika)
  • Vysočina Region
    • Pelhřimov District
      • Křeč
Vrtiška L et al. (2017)
    • Žďár nad Sázavou District
      • Bory
        • Horní Bory
          • Cyrilov (Cyrillhof)
Škoda +1 other reference
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Vichy
        • Échassières
          • Montmins mining district
Yannick Vessely collection - SEM-EDS ...
            • Le Mazet
Uwe Kolitsch (SXRD + SEM-EDS)
Boisson et al. (2000) +1 other reference
  • Brittany
    • Morbihan
      • Pontivy
        • Plumelin
Pierre Le Roch & Jean-Marc Johannet ...
      • Vannes
        • Rochefort-en-Terre
Bull.Mineral. (1982)
  • Nouvelle-Aquitaine
    • Deux-Sèvres
      • Bressuire
        • Mauléon
          • Le Temple
Jean-Marc Johannet collection (unpublished SEM-EDS analyses by Vincent Bourgouin)
  • Occitanie
    • Aveyron
      • Villefranche-de-Rouergue
        • La Capelle-Bleys
Gayraud et al. (2011)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Oberwolfach
Collected by Hans-Peter Maaßen +1 other reference
  • Hesse
    • Giessen Region
      • Limburg-Weilburg
        • Weinbach
Blaß (2002)
  • Rhineland-Palatinate
    • Altenkirchen
      • Daaden-Herdorf
        • Herdorf
          • Dermbach
Hucko (2010)
    • Westerwaldkreis
      • Wirges
        • Dernbach
SEM-EDS
  • Saxony
    • Erzgebirgskreis
      • Ehrenfriedersdorf
Wittern (2001)
Hungary
 
  • Borsod-Abaúj-Zemplén County
    • Miskolc District
      • Bükkszentkereszt
collector: Regina Körmendy
Italy
 
  • Liguria
    • Savona Province
Bruno Marello collection
Marco Ciriotti 2010
Balestra C. (2009)
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane Cercle
        • Ouisselsate Caïdat
Favreau (2012)
Portugal
 
  • Bragança
    • Torre de Moncorvo
      • Felgar e Souto da Velha
Pedro Alves collection and analytical ...
  • Viseu
    • Vila Nova de Paiva
Identified in Rebentão Mine
      • Queiriga
        • Lagares do Estanho Mines
Nuno Afonso collection
Spain
 
  • Castile-La Mancha
    • Ciudad Real
      • Almodóvar del Campo
www.foro-minerales.com (2022)
www.foro-minerales.com (2022) +1 other reference
  • Castile and Leon
    • Zamora
      • Villar del Buey
Roda-Robles et al. (1998)
  • Extremadura
    • Cáceres
      • Zarza la Mayor
Viñals et al. (2011)
USA
 
  • Alabama
    • Cherokee County
Henry Barwood
Henry Barwood
  • Arizona
    • Graham County
      • Lone Star Mining District (Safford Mining District; Dos Pobres Mining District)
        • Lone Star
          • Lone Star Mountain
Grant et al. (2005)
  • Nevada
    • Humboldt County
      • Iron Point Mining District
        • Valmy
Silver Coin Mine. Compact Disc. Paul ...
 
Mineral and/or Locality  
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