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Agardite-(Ce)

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Formula:
CeCu6(AsO4)3(OH)6 · 3H2O
System:
Hexagonal
Colour:
light green, yellowish ...
Lustre:
Sub-Vitreous, Resinous, Silky
Hardness:
3 - 4
Member of:
Name:
Named by Kurt Walenta and Thomas Theye in 2003 for its relationship to the other Agardite series species.
Mixite Group.

Visually similar to Creaseyite.

Classification of Agardite-(Ce)

Approved 2003
8.DL.15

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
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First Recorded Occurrence of Agardite-(Ce)

Physical Properties of Agardite-(Ce)

Sub-Vitreous, Resinous, Silky
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
light green, yellowish green
Streak:
greenish white
Hardness (Mohs):
3 - 4
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
3.7 g/cm3 (Measured)    3.775 g/cm3 (Calculated)

Crystallography of Agardite-(Ce)

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Space Group Setting:
P63/m
Cell Parameters:
a = 13.59Å, c = 5.89Å
Ratio:
a:c = 1 : 0.433
Unit Cell Volume:
V 942.1 ų
Z:
2

Optical Data of Agardite-(Ce)

Type:
Uniaxial (+)
RI values:
nω = 1.725 nε = 1.810
Max Birefringence:
δ = 0.085
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of Agardite-(Ce)

Formula:
CeCu6(AsO4)3(OH)6 · 3H2O
Essential elements:
All elements listed in formula:

Relationship of Agardite-(Ce) to other Species

Member of:
Other Members of Group:
Agardite-(Dy)(Dy,La)Cu6(AsO4)3(OH)6 · 3H2O
Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2O
Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2O
Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2O
CalciopetersiteCaCu6(PO4)2(PO3OH)(OH)6 · 3H2O
GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2O
MixiteBiCu6(AsO4)3(OH)6 · 3H2O
Petersite-(Ce)Cu6Ce(PO4)3(OH)6·3H2O
Petersite-(Y)(Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2O
Plumboagardite(Pb,REE,Ca)Cu6(AsO4)2(HAsO4,AsO4)(OH)6 · 3H2O
ZálesíiteCaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2O
8.DL.05FoggiteCaAl(PO4)(OH)2 · H2O
8.DL.10CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
8.DL.10Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
8.DL.10WarditeNaAl3(PO4)2(OH)4 · 2H2O
8.DL.15Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2O
8.DL.15Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2O
8.DL.15Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2O
8.DL.15GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2O
8.DL.15MixiteBiCu6(AsO4)3(OH)6 · 3H2O
8.DL.15Petersite-(Y)(Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2O
8.DL.15ZálesíiteCaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2O
8.DL.15Plumboagardite(Pb,REE,Ca)Cu6(AsO4)2(HAsO4,AsO4)(OH)6 · 3H2O
8.DL.15CalciopetersiteCaCu6(PO4)2(PO3OH)(OH)6 · 3H2O
8.DL.20CheremnykhitePb3Zn3(VO4)2(TeO6)
8.DL.20DugganitePb3Zn3(AsO4)2(TeO6)
8.DL.20KuksitePb3Zn3(PO4)2(TeO6)
8.DL.20Wallkilldellite-(Mn)Ca2Mn32+(AsO4)2(OH)4 · 9H2O
8.DL.20Wallkilldellite-(Fe)(Ca,Cu)4Fe62+(AsO4,SiO4)4(OH,O)8 · 18H2O
8.DL.25AngastoniteCaMgAl2(PO4)2(OH)4 · 7H2O

Other Names for Agardite-(Ce)

Name in Other Languages:
Simplified Chinese:砷铈铜石
Traditional Chinese:砷鈰銅石

Other Information

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 Agardite-(Ce)

Reference List:
Walenta, K. and Theye, T. (2004) Agardit-(Ce) von der Grube Clara im mittleren Schwarzwald. Aufschluss 55, 17-23. (in German)

Lapis (1984) 1: 22-37

Internet Links for Agardite-(Ce)

Localities for Agardite-(Ce)

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Australia
 
  • New South Wales
    • Yancowinna Co.
No reference listed
  • Western Australia
    • East Pilbara Shire
      • Rudall River District
Downes, P. J., Hope, M., Bevan, A. W. R. and Henry, D. A. (2006): Chalcocite and associated secondary minerals from the Telfer gold mine, Western Australia. Austral. J. Mineral. 12, 25-42.
Austria
 
  • Salzburg
    • Hohe Tauern
      • Gastein valley
        • Naßfeld valley
          • Kreuzkogel massif
            • Radhausberg
Kolitsch, U. (2014): 1876) Agardit-(Ce), Agardit-(Nd), Plumboagardit(?), Pseudomalachit und Zalesiit(?) vom Kielbreinbau, Radhausberg-Südseite, Gasteinertal, Salzburg. P. 112 in Niedermayr, G. et al. (2014): Neue Mineralfunde aus Österreich LXIII. Carinthia II, 204./124., 65-146. [sample mix-up by finder]
  • Styria
    • Fischbacher Alpen
      • Rettenegg
        • Prinzkogel (Prinzenkogel)
          • Prinzkogel mines
            • Southern District
Jakely, D. et al. (2008)
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Příbram
        • Vrančice
Sejkora, J., Toegel, V., Pauliš, P.: Agardit-(Ce) ze supergenní zóny ložiska Vrančice u Příbrami (Česká republika). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 2, 217-220.
- Sejkora, J., Toegel, V., Pauliš, P.: Agardit-(Ce) ze supergenní zóny ložiska Vrančice u Příbrami (Česká republika). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 2, 217-220.
France
 
  • Franche-Comté
    • Territoire-de-Belfort
U. Kolitsch (1997): Neufunde von Mineralien aus einigen Vorkommen der Vogesen, Frankreich: Giromagny, Auxelles-Haut und Kruth 1. Aufschluss 48 (4), 243-256.
  • Lorraine
    • Vosges
      • Val-d'Ajol
Favreau G., Iltis A. (2000), Données complémentaires sur les minéraux du Val d'Ajol (Vosges), Le Cahier des Micromonteurs, n°1, pp: 39-54
  • Midi-Pyrénées
    • Aveyron
      • Lunel
      • Monteils
Georges Favreau - Favreau G., Eytier J-R., Eytier C. (2010), Les minéraux de la mine de Falgayrolles (Aveyron), Le Cahier des Micromonteurs, n°109
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Calw
Walenta, K. (1992): "Die Mineralien des Schwarzwaldes", Weise (Munich).
      • Schenkenzell
        • Wittichen
          • Burgfelsen
K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
      • Wolfach
        • Oberwolfach
          • Rankach valley
Walenta, K. & Theye, T. (2004): Agardit-(Ce) von der Grube Clara im mittleren Schwarzwald. Aufschluss 55, 17-23.
  • Lower Saxony
    • Harz
      • Bad Lauterberg
Gröbner, J. & Kloss, D. (2010): Neufunde von der Grube Wolkenhügel bei Bad Lauterberg im Harz. Lapis 35 (1), 39-41; 62.
      • Clausthal-Zellerfeld
        • Bockswies veins
          • Oberschulenberg
No reference listed
  • Saxony
    • Erzgebirge
      • Niederschlag-Bärenstein District
        • Bärenstein
          • Niederschlag
Lapis, 19 (4), 13-22+50.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
LAPIS 24 (7/8) 1999; Wendel, W. and Markl, G. (1999) Lavrion: Mineralogische Klassiker und Raritäten für Sammler. LAPIS 24 (7/8):34-52
          • Kamariza Mines (Kamareza Mines)
No reference listed
            • Hilarion area
No reference listed
No reference listed
Italy
 
  • Sardinia
    • Carbonia-Iglesias Province
      • Fluminimaggiore
Stara, P., Rizzo, R., Tanca, G. A. (1996): Iglesiente – Arburese, Miniere e Minerali. Associazioni e Gruppi Mineralogici Italiani Ed., 238 pp.
Giovanni Fraccaro collection
    • Medio Campidano Province
      • Gonnosfanadiga
- Sabelli C. (2000): Rooseveltite e "agardite-(Ce)".Riv. Mineral. Ital., 1/2000, 40-43.
  • Trentino-Alto Adige (Trentino-Südtirol)
    • Trento Province
      • Valsugana
        • Vignola-Falesina
Paolo Gasparetto, Erica Bittarello, Andrea Canal, Lara Casagrande, Marco E. Ciriotti, Bruno Fassina, Paolo Ferretti, Sergio Pegoraro, Fabio Tosato, Paolo Zammatteo (2014): I lavori minerari del Rio Ricet, Vignola, Falesina, Trento. Micro, 12, 50-123.
  • Tuscany
    • Livorno Province
      • Campiglia Marittima
Senesi, F. & Sabelli, C. (1999): Gli arseniati degli antichi scavi di Valle S. Caterina (Campiglia Marittima). Rivista Mineralogica Italiana, 23(1), 51-55.
Morocco
 
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azer District (Bou Azzer District)
          • Taghouni
T. Witzke, U. Kolitsch, W. Krause, A. Wiechowski, O. Medenbach, A. R. Kampf, I. M. Steele and G. Favreau (2006): Guanacoite, Cu2Mg2(Mg0.5Cu0.5)(OH)4(H2O)4(AsO4)2, a new arsenate mineral species from the El Guanaco Mine, near Taltal, Chile: Description and crystal structure. Eur. J. Mineral. (in press).
Namibia
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Karabash (Karabasch)
          • Soimon Valley
Vladimir Yu. Karpenko data
UK
 
  • England
    • Cornwall
      • Mount's Bay District
        • St Hilary
Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
      • St Agnes District
        • St Agnes
Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
      • St Erth - Gwithian Area
        • Hayle
          • Great Wheal Alfred (Alfred Consols)
[Golley & Williams, 1995, 2 - "Cornish Mineral Reference Manual"]
USA
 
  • Nevada
    • Pershing Co.
      • Antelope District
        • Majuba Hill Mine (Majuba Mine; Mylar Mine; Tin Mine; Nevada Bureau of Mines and Geology sample sites 2844 & 2846)
Natural History Museum Vienna collection; Jensen, M. (1993): Update on the mineralogy of the Majuba Hill mine, Pershing County. Mineralogical Record. 24, 171-180.
Mineral and/or Locality  
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