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Natrodufrénite

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Formula:
NaFe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
System:MonoclinicHardness:3½ - 4½
Member of:Dufrénite Group


The ferrous iron analogue of gayite.

Classification of Natrodufrénite

IMA status:Approved 1981
Strunz 8th edition ID:7/D.11-130
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:42.9.1.3

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

19 : Phosphates
14 : Phosphates of Fe and other metals
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Type Occurrence of Natrodufrénite

Type Locality:Pluherlin Castle, Rochefort-en-Terre, Morbihan, Brittany, France

Physical Properties of Natrodufrénite

Hardness (Mohs):3½ - 4½

Crystallography of Natrodufrénite

Crystal System:Monoclinic
Cell Parameters:a = 25.83Å, b = 5.15Å, c = 13.77Å
β = 111.53°
Ratio:a:b:c = 5.016 : 1 : 2.674
Unit Cell Volume:V 1,703.94 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
12.04 (80)
5.040 (60)
4.124 (50)
3.400 (80)
3.204 (80)
3.152 (100)
2.989 (50)
Comments:Close to dufrenite.

Optical Data of Natrodufrénite

Type:Biaxial
RI values: nα = 1.756 nγ = 1.775
Maximum Birefringence:δ = 0.019

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:distinct to strong

Chemical Properties of Natrodufrénite

Formula:
NaFe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
Simplified for copy/paste:NaFe2+Fe3+5(PO4)4(OH)6·2H2O
Essential elements:Fe, H, Na, O, P
All elements listed in formula:Fe, H, Na, O, P

Relationship of Natrodufrénite to other Species

Member of:Dufrénite Group
Other Members of Group:

- +
Burangaite
NaFe
2+
 
Al
 
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
Dufrénite
Ca
 
0.5
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
Gayite
NaMn
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
Matioliite
NaMgAl
 
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.DK.Richelsdorfite
Ca
 
2
Cu
 
5
Sb(AsO
 
4
)
 
4
(OH)
 
6
Cl · 6H
 
2
O
8.DK.10Bariopharmacosiderite
Ba
 
0.5
Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
· 5H
 
2
O
8.DK.10Pharmacosiderite
KFe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
· 6-7H
 
2
O
8.DK.10Natropharmacosiderite
(Na,K)Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
· 6-7H
 
2
O
8.DK.10Hydroniumpharmacosiderite
(H
 
3
O)Fe
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 4H
 
2
O
8.DK.12Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 6.5H
 
2
O
8.DK.12Natropharmacoalumite
NaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 4H
 
2
O
8.DK.12Bariopharmacoalumite
Ba
 
0.5
Al
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 4H
 
2
O
8.DK.15Burangaite
NaFe
2+
 
Al
 
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.15Dufrénite
Ca
 
0.5
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.15Matioliite
NaMgAl
 
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.15Gayite
NaMn
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.20Kidwellite
NaFe
3+
9
(PO
 
4
)
 
6
(OH)
 
11
· 3H
 
2
O
8.DK.25Bleasdaleite
(Ca,Fe
3+
 
)
 
2
Cu
 
5
(Bi,Cu)(PO
 
4
)
 
4
(H
 
2
O,OH,Cl)
 
13
8.DK.30Matulaite
(Fe
3+
 
,Al)Al
 
7
(PO
 
4
)
 
4
(PO
 
3
OH)
 
2
(OH)
 
8
(H
 
2
O)
 
8
· 8H
 
2
O
8.DK.35Krasnovite
Ba(Al,Mg)(PO
 
4
,CO
 
3
)(OH)
 
2
· H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
19.14.1Cyrilovite
NaFe
3+
3
(PO
 
4
)
 
2
(OH)
 
4
· 2H
 
2
O
19.14.2Kidwellite
NaFe
3+
9
(PO
 
4
)
 
6
(OH)
 
11
· 3H
 
2
O
19.14.3Rosemaryite
(Na,Ca,Mn)(Mn,Fe
2+
 
)(Fe
3+
 
,Mg)Al(PO
 
4
)
 
3
19.14.4Wyllieite
(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO
 
4
)
 
3
19.14.5Ferrowyllieite
(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO
 
4
)
 
3
19.14.7Leucophosphite
KFe
3+
2
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
19.14.8Spheniscidite
(NH
 
4
,K)(Fe
3+
 
,Al)
 
2
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
19.14.9Burangaite
NaFe
2+
 
Al
 
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
19.14.10Satterlyite
(Fe
2+
 
,Mg,Fe
3+
 
)
 
2
(PO
 
4
)(OH,O)
19.14.11Ushkovite
MgFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
19.14.12Garyansellite
(Mg,Fe)
 
3
(PO
 
4
)
 
2
(OH,O) · 1.5H
 
2
O
19.14.13Thadeuite
Ca(Mg,Fe
2+
 
)
 
3
(PO
 
4
)
 
2
(OH,F)
 
2
19.14.14Anapaite
Ca
 
2
Fe
2+
 
(PO
 
4
)
 
2
· 4H
 
2
O
19.14.15Xanthoxenite
Ca
 
4
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
2
· 3H
 
2
O
19.14.16Calcioferrite
Ca
 
2
Fe
3+
2
(PO
 
4
)
 
3
(OH) · 7H
 
2
O
19.14.17Mitridatite
Ca
 
2
Fe
3+
3
(PO
 
4
)
 
3
O
 
2
· 3H
 
2
O
19.14.18Mélonjosephite
CaFe
2+
 
Fe
3+
 
(PO
 
4
)
 
2
(OH)
19.14.19Delvauxite
CaFe
 
4
(PO
 
4
,SO
 
4
)
 
2
(OH)
 
8
· 4-6H
 
2
O not confirmed ·
19.14.20Collinsite
Ca
 
2
(Mg,Fe
2+
 
)(PO
 
4
)
 
2
· 2H
 
2
O
19.14.21Segelerite
Ca
 
2
Mg
 
2
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
2
· 8H
 
2
O
19.14.22Kingsmountite
Ca
 
4
(Fe
2+
 
,Mn
2+
 
)Al
 
4
(PO
 
4
)
 
6
(OH)
 
4
· 12H
 
2
O
19.14.23Vauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 6H
 
2
O
19.14.24Metavauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
19.14.25Paravauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
19.14.26Sigloite
Fe
3+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
3
· 7H
 
2
O
19.14.27Cacoxenite
Fe
3+
24
Al(PO
 
4
)
 
17
O
 
6
(OH)
 
12
· 17H
 
2
O
19.14.28Koninckite
Fe
3+
 
PO
 
4
· 3H
 
2
O
19.14.29Lazulite
(Mg,Fe
2+
 
)Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
19.14.30Scorzalite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
19.14.31Souzalite
(Mg,Fe
2+
 
)
 
3
(Al,Fe
3+
 
)
 
4
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
19.14.32Gormanite
(Fe
2+
 
,Mg)
 
3
(Al,Fe
3+
 
)
 
4
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
19.14.33Zaïrite
Bi(Fe
3+
 
,Al)
 
3
(PO
 
4
)
 
2
(OH)
 
6

Other Names for Natrodufrénite

Synonyms:
IMA1981-033
Other Languages:
German:Natrodufrenit
Spanish:Natrodufrenita

Other Information

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

References for Natrodufrénite

Reference List:

- +
Bulletin de la Société française de Minéralogie et de Cristallographie (1982): 105: 321-326.

American Mineralogist (1983): 68: 1039.

Internet Links for Natrodufrénite

Search Engines:
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  • Look for Natrodufrénite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Natrodufrenite details from Handbook of Mineralogy (PDF)
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  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Natrodufrénite specimens for sale - minfind.com
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  • Rare and Unusual minerals at Mineralogical Research Company
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  • Localities for Natrodufrénite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Argentina
     
    • Córdoba
      • Punilla Department
    Kampf, A.R., Colombo, F., González del Tánago, J. (2010): Gayite, a new dufrénite-group mineral from the Gigante granitic pegmatite, Córdoba province, Argentina. American Mineralogist, 95, 386–391.
    Australia
     
    • New South Wales
      • Yancowinna Co.
        • Broken Hill
    Australian Min. 3:1 (1997)
    [UKJMM 19:28]
    • Queensland
      • Mount Isa - Cloncurry area
        • Gunpowder District
          • Mount Gordon
    Day, B. E. & Beyer, B. D. (1996): Some mines of the Mt Isa district. Part 3 - The Mt Oxide mine. Australian J. of Mineralogy 2 (1), 3-10.
    • South Australia
      • Mt Lofty Ranges
        • North Mt Lofty Ranges
          • Barossa Valley
            • Angaston
    Peter Elliott
          • Kapunda
    Vince Peisley specimen
          • Robertstown
    Peter Elliott
      • Olary Province
        • Ameroo Hill
    Australian Journal of Mineralogy, Vol.3, N°2, Dec.1997
    Australian Journal of Mineralogy, Vol.3, N°2, Dec.1997
    • Victoria
      • Castlemaine
        • Campbells Creek
    P. Sutton (2007): Cyrilovite and natrodufrenite from near Campbells Creek, Victoria. Australian Journal of Mineralogy, 13(2), 65-71.
      • City of Greater Shepparton
        • Dookie
          • Ascot Hills
      • Swan Hill Rural City
    No reference listed
    Austria
     
    • Lower Austria
      • Waldviertel
        • Großdietmanns
          • Unterlembach
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Brazil
     
    • Minas Gerais
      • Doce valley
        • Galiléia
          • Sapucaia do Norte
    Sergio Varvello collection
    Chile
     
    • Antofagasta Region
      • El Loa Province
        • Calama
          • Chuquicamata District
    maurizio dini collection - analysed material
    • Atacama Region
      • Chañaral Province
        • El Salvador district
    maurizio dini collection - analysed material
    • Tarapacá Region
      • El Tamarugal Province
        • Collahuasi District
    Sulphides analysed by geology dep. of company; sulphates, phosphates, analysed by Bob Jenkins (Usa) 2007
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Horní Slavkov (Schlaggenwald)
          • Krásno (Schönfeld)
    Sejkora, J., Škoda, R., Ondruš, P., Beran, P. & Susser, C. (2006): Mineralogy of phosphate accumulations in the Huber stock, Krásno ore district, Slavkovský les area, Czech Republic. Journal of the Czech Geological Society 51, 103-147.
            • Vysoký Kámen
    Sejkora, J., Süsser, C., Plášil, J.: Natrodufrénit a asociace fosfátů, ložisko Vysoký kámen – greisen, Krásno u Horního Slavkova. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2007, roč. 14-15, s. 116-125.
      • Liberec Region
        • Jilemnice (Starkenbach)
    Škoda, R., Rus, P.: Revize dufrenitu z Poniklé. Minerál, 2010, roč. 18, č. 2, s. 119-123.
      • South Bohemia Region
        • Písek
    Sejkora J., Cícha J., Jebavá I.: Minerální asociace fosfátů z Čížové u Písku (Česká republika). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2011, 19, 1, 1-26.
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Velké Meziříčí
    Škoda, R., Staněk, J., Čopjaková, R.: Minerální asociace fosfátových nodulí z granitického pegmatitu od Cyrilova u Velkého Meziříčí, Moldanubikum; část 1 – primární a exsoluční fáze. Acta Mus. Moraviae, Sci. geol., 2007, 92, 59-74.
    France
     
    • Auvergne
      • Allier
        • Ébreuil
          • Échassières
    Uwe Kolitsch (SXRD + SEM-EDS)
    J.M. Boisson et al. : "Filon Sainte Barbe, Commune d'Echassières, Allier, France", Le Cahier des Micromonteurs, 2000, 4, 3-46; Mestrom, P., Lustenhouwer, W. & Kars, S. (2011): Les Montmins (Massif Central, F) nader bekeken. GEA, 44 (1), 16-21 (in Dutch).
    • Brittany
      • Morbihan
        • Plumelin
    Pierre Le Roch & Jean-Marc Johannet collections
        • Rochefort-en-Terre
    Bull.Mineral. (1982): 105, 321-326.
    • Midi-Pyrénées
      • Aveyron
        • La Capelle-Bleys
    Gayraud, L., Gineste, C., Bernadi, G. & Johannet, J.-M. (2011) - Bleys et Puech de Compolibat: deux localités minéralogiques remarquables du massif de leucogranite de La Capelle-Bleys (Aveyron), Le Cahier des Micromonteurs, 111(1), 7-23
    Germany
     
    • Hesse
      • Wetzlar
        • Weilburg
          • Essershausen
    Blaß, G. (2002): Eine neue Phosphatmineralien-Paragenese von der Grube Mark bei Essershausen, mittleres Lahngebiet, Taunus. Mineralien-Welt, 13 (6), 18-43. (in German)
    • Rhineland-Palatinate
      • Siegerland
        • Herdorf
          • Dermbach
    Hucko, S. (2010): Phosphatparagenesen auf Brauneisensteingängen am Windhahn. Mineralien-Welt 21 (2), 14-25.
    • Saxony
      • Erzgebirge
        • Ehrenfriedersdorf
    Wittern: "Mineralfundorte in Deutschland", 2001
    Italy
     
    • Liguria
      • Savona Province
    Bruno Marello collection
    Marco Ciriotti 2010
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
    Favreau, G. (2012): Les minéralisations à phosphates de la pegmatite d'Angarf-Sud (Maroc).Le Cahier des Micromonteurs, 3-2012, 3-70.
    Portugal
     
    • Viseu District
      • Vila Nova de Paiva
        • Queiriga
          • Lagares do Estanho Mines
    Nuno Afonso collection
    Spain
     
    • Castile and Leon
      • Zamora
        • Villar del Buey
          • Pinilla de Fermoselle
    • Extremadura
      • Cáceres
        • Zarza la Mayor
    Viñals, J. and Calvo, M. (2011). Secondary phosphates of La Paloma mine, Zarza la Mayor, Cáceres, Spain. Mineral Up 2 (5), 8-31.
    USA
     
    • Arizona
      • Graham Co.
        • Gila Mts
          • Lone Star District (Safford District; Dos Pobres District)
            • Lone Star
              • Lone Star Mountain
    Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 6.
    Mineral and/or Locality  
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