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Agardite-(Ce)

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Big Photo

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
© geni 2011

Show Agardite-(Ce) Photos (142)



Formula:
CeCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
System:HexagonalColour:light green, yellowish ...
Lustre:Sub-Vitreous, Resinous, SilkyHardness:3 - 4
Member of:Mixite Group
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)

IMA status:Approved 2003
Strunz 8th edition ID:7/D.53-60
Nickel-Strunz 10th (pending) edition ID: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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Type Occurrence of Agardite-(Ce)

Type Locality:Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

Physical Properties of Agardite-(Ce)

Lustre: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 (measured):3.7 g/cm3
Density (calculated):3.775 g/cm3

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
Maximum Birefringence:δ = 0.085

Chart 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:
CeCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Essential elements:As, Ce, Cu, H, O
All elements listed in formula:As, Ce, Cu, H, O

Relationship of Agardite-(Ce) to other Species

Member of:Mixite Group
Other Members of Group:

- +
Agardite-(Dy)
(Dy,La)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Agardite-(Nd)
NdCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Agardite-(Y)
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
 · 3H
 
2
O
Calciopetersite
CaCu
 
6
(PO
 
4
)
 
2
(HPO
 
4
)(OH)
 
6
 · 3H
 
2
O
Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Mixite
BiCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Petersite-(Y)
(Y,Ce,Nd)Cu
 
6
(PO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
Zálesíite
(Ca,Y)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
 · 3H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.DL.05Foggite
CaAl(PO
 
4
)(OH)
 
2
 · H
 
2
O
8.DL.10Cyrilovite
NaFe
3+
3
(PO
 
4
)
 
2
(OH)
 
2
 · 2H
 
2
O
8.DL.10Millisite
(Na,K)CaAl
 
6
(PO
 
4
)
 
4
(OH)
 
9
 · 3H
 
2
O
8.DL.10Wardite
NaAl
 
3
(PO
 
4
)
 
2
(OH)
 
4
 · 2H
 
2
O
8.DL.15Agardite-(Nd)
NdCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Agardite-(Y)
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Mixite
BiCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Petersite-(Y)
(Y,Ce,Nd)Cu
 
6
(PO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Zálesíite
(Ca,Y)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Plumboagardite
(Pb,REE,Ca)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Calciopetersite
CaCu
 
6
(PO
 
4
)
 
2
(HPO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.20Cheremnykhite
Pb
 
3
Zn
 
3
(VO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Dugganite
Pb
 
3
Zn
 
3
(AsO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Kuksite
Pb
 
3
Zn
 
3
(PO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Wallkilldellite-(Mn)
Ca
 
2
Mn
2+
3
(AsO
 
4
)
 
2
(OH)
 
4
 · 9H
 
2
O
8.DL.20Wallkilldellite-(Fe)
(Ca,Cu)
 
4
Fe
2+
6
(AsO
 
4
,SiO
 
4
)
 
4
(OH,O)
 
8
 · 18H
 
2
O
8.DL.25Angastonite
CaMgAl
 
2
(PO
 
4
)
 
2
(OH)
 
4
 · 7H
 
2
O

Other Names for Agardite-(Ce)

Synonyms:
Chlorotile-(Ce)IMA2003-030
Other Languages:
Czech:Agardit-(Ce)
German:Agardit-(Ce)
Italian:Agardite-(Ce)
Latvian:Agardīts-(Ce)
Russian:Агардит-(Ce)

Other Information

Fluorescence in UV light:Not fluorescent
Special Storage/
Display Requirements from:
Tin stope,..., Pershing Co., Nevada, USABe careful when cleaning in water ! Agardite fibers will clump.
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 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

Best Localities for Agardite-(Ce)

Best of Species:Agardite-(Ce)

Internet Links for Agardite-(Ce)

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    • Localities for Agardite-(Ce)

    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.
    Hide Locality List
    (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.
    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
     
    • 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
    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
          • Oberschulenberg
    		No reference listed
    • Saxony
      • Erzgebirge
        • Niederschlag-Bärenstein District
          • Bärenstein
            • Niederschlag
    		Lapis, 19 (4), 13-22+50.
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • 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
    • 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 (Oshikoto) Region
      • 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
    		No reference listed
        • St Erth - Gwithian Area
          • Phillack
            • Great Wheal Alfred (Alfred Consols)
    		[Golley & Williams, 1995, 2 - "Cornish Mineral Reference Manual"]
    USA
     
    • Nevada
      • Pershing Co.
        • Antelope District
          • Majuba Hill Mine (Mylar Mine)
    		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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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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