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Agardite-(Ce)

A valid IMA mineral species
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07429610014949551259336.jpg
Agardite-(Ce)

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
07053790014947333329587.jpg
Agardite-(Ce)

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
00202120014947161916178.jpg
Agardite-(Ce)

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
06806440014946664519315.jpg
Agardite-(Ce)

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
07053790014947333329587.jpg
Agardite-(Ce)

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
08111310014946664542115.jpg
Agardite-(Ce)

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
06806440014946664519315.jpg
Agardite-(Ce)

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
07053790014947333329587.jpg
Agardite-(Ce)

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
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About Agardite-(Ce)Hide

Formula:
CeCu6(AsO4)3(OH)6 · 3H2O
Colour:
Light green, yellowish green
Lustre:
Sub-Vitreous, Resinous, Silky
Hardness:
3 - 4
Specific Gravity:
3.7
Crystal System:
Hexagonal
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.


Unique IdentifiersHide

Mindat ID:
48
Long-form identifier:
mindat:1:1:48:8
GUID
(UUID V4):
29372273-dd67-43a7-a0c5-32bd6bac6e7c

IMA Classification of Agardite-(Ce)Hide

IMA status:
Approved
IMA Formula:
CeCu2+6(AsO4)3(OH)6 · 3H2O
Approval year:
2003

Classification of Agardite-(Ce)Hide

Strunz-mindat (2024):
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

Mineral SymbolsHide

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

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

Pronunciation of Agardite-(Ce)Hide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of Agardite-(Ce)Hide

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

Optical Data of Agardite-(Ce)Hide

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

Chemistry of Agardite-(Ce)Hide

Mindat Formula:
CeCu6(AsO4)3(OH)6 · 3H2O
Elements listed:
As, Ce, Cu, H, O - search for minerals with similar chemistry

Crystallography of Agardite-(Ce)Hide

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

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014774Agardite-(Ce)Hess H (1983) Die kristallstruktur des chlorotils, SECu6(AsO4)3(OH)6*3H2O (SE = seltene erdmetalle) Neues Jahrbuch fur Mineralogie, Monatshefte 1983 385-3921983Clara mine, Black Forest, Baden-Wurttemberg, Germany0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.88 Å(100)
4.47 Å(80)
3.56 Å(80)
3.26 Å(50)
2.95 Å(80)
2.70 Å(50)
2.57 Å(50)
2.46 Å(90)
Comments:
Clara mine, Germany. Data from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47d : [Arsenates, antimonates, selenates, bismuthinates]

Type Occurrence of Agardite-(Ce)Hide

Type Locality:
ⓘ Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
General Appearance of Type Material:
Acicular crystals up to 0.5 mm long and 0.01 mm thick. commonly in radiating aggregates.
Place of Conservation of Type Material:
Institut für Mineralogie und Kristallchemie, Stuttgart, Germany (holotype).
Geological Setting of Type Material:
Secondary, oxidation zone.
Associated Minerals at Type Locality:
QuartzGoethiteCornwalliteBaryte

Synonyms of Agardite-(Ce)Hide

Other Language Names for Agardite-(Ce)Hide

Simplified Chinese:砷铈铜石
Traditional Chinese:砷鈰銅石

Relationship of Agardite-(Ce) to other SpeciesHide

Member of:
Mixite Group
Other Members of this group:
Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
CalciopetersiteCaCu6(PO4)2(PO3OH)(OH)6 · 3H2OHex. 6/m : P63/m
GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2OHex.
MixiteBiCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Petersite-(Ce)Cu6Ce(PO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Petersite-(La)Cu6La(PO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Petersite-(Y)(Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2OHex.
Plumboagardite(Pb,REE,Ca)Cu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
ZálesíiteCaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2OHex. 6/m : P63/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
57 photos of Agardite-(Ce) associated with CornwalliteCu5(AsO4)2(OH)4
49 photos of Agardite-(Ce) associated with QuartzSiO2
45 photos of Agardite-(Ce) associated with OliveniteCu2(AsO4)(OH)
37 photos of Agardite-(Ce) associated with FluoriteCaF2
35 photos of Agardite-(Ce) associated with BaryteBaSO4
20 photos of Agardite-(Ce) associated with MalachiteCu2(CO3)(OH)2
9 photos of Agardite-(Ce) associated with ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2O
8 photos of Agardite-(Ce) associated with BariopharmacosideriteBa0.5Fe3+4(AsO4)3(OH)4 · 5H2O
8 photos of Agardite-(Ce) associated with HematiteFe2O3
7 photos of Agardite-(Ce) associated with Goethiteα-Fe3+O(OH)

Related Minerals - Strunz-mindat GroupingHide

8.DL.05FoggiteCaAl(PO4)(OH)2 · H2OOrth. mmm (2/m 2/m 2/m)
8.DL.10CyriloviteNaFe3+3(PO4)2(OH)4 · 2H2OTet. 4 2 2 : P41 21 2
8.DL.10Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2OTet.
8.DL.10WarditeNaAl3(PO4)2(OH)4 · 2H2OTet. 4 2 2 : P41 21 2
8.DL.10FluorowarditeNaAl3(PO4)2F2(OH)2(H2O)2 Tet. 4 2 2 : P41 21 2
8.DL.15Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Agardite-(Dy)(Dy,La)Cu6(AsO4)3(OH)6 · 3H2OHex.
8.DL.15Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2OHex.
8.DL.15MixiteBiCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Petersite-(Y)(Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2OHex.
8.DL.15ZálesíiteCaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Plumboagardite(Pb,REE,Ca)Cu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15CalciopetersiteCaCu6(PO4)2(PO3OH)(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Petersite-(Ce)Cu6Ce(PO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Petersite-(La)Cu6La(PO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.20CheremnykhitePb3Zn3(VO4)2(TeO6)Orth.
8.DL.20DugganitePb3Zn3(AsO4)2(TeO6)Trig. 3 2 : P3 2 1
8.DL.20KuksitePb3Zn3(PO4)2(TeO6)Trig. 3 2 : P3 2 1
8.DL.20WallkilldelliteCa2Mn2+3(AsO4)2(OH)4 · 9H2OHex.
8.DL.20Wallkilldellite-(Fe)(Ca,Cu)4Fe2+6(AsO4,SiO4)4(OH,O)8 · 18H2OHex.
8.DL.25AngastoniteCaMgAl2(PO4)2(OH)4 · 7H2OAmor.
8.DL.30LångbanshyttanitePb2Mn2Mg(AsO4)2(OH)4 · 6H2OTric. 1 : P1

Fluorescence of Agardite-(Ce)Hide

In UV light:
Not fluorescent

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 Agardite-(Ce)Hide

References for Agardite-(Ce)Hide

Localities for Agardite-(Ce)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 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.
Australia
 
  • New South Wales
    • Robinson Co.
      • Cobar
Ex Jim Sharpe Collection
    • Yancowinna Co.
      • Broken Hill district
  • Western Australia
    • East Pilbara Shire
      • Rudall River District
Downes et al. (2006)
Austria
 
  • Salzburg
    • St. Johann im Pongau District
      • Bad Gastein
        • Naßfeld valley
          • Kreuzkogel massif
            • Radhausberg
Kolitsch (2014) +1 other reference
  • Styria
    • Weiz District
      • Rettenegg
        • Prinzkogel (Prinzenkogel)
          • Prinzkogel mines
            • Southern District
Jakely (2008)
Czech Republic
 
  • Central Bohemian Region
    • Příbram District
      • Vrančice
Sejkora et al. (Ce)
Sejkora et al. (Ce)
France
 
  • Bourgogne-Franche-Comté
    • Territoire-de-Belfort
      • Belfort
Kolitsch (1997)
  • Grand Est
    • Bas-Rhin
      • Sélestat-Erstein
        • Urbeis
N. Meisser2001 and 2002 Analysis
    • Vosges
      • Épinal
        • Bussang
G. Parodi analysis (MNHNP)
        • Le Val-d'Ajol
          • Faymont
ESCANDE et al. (1973) +6 other references
ESCANDE et al. (1973) +6 other references
  • Occitanie
    • Aveyron
      • Rodez
        • Pruines
Lheur (2023)
      • Villefranche-de-Rouergue
        • Monteils
Favreau et al. (2010)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Breisgau-Hochschwarzwald
        • Münstertal
          • Belchen
Gröbner (2017)
      • Ortenaukreis
        • Gengenbach
          • Gengenbach
Gröbner (2017)
        • Oberwolfach
Walenta et al. (2004) +2 other references
      • Rottweil
        • Schenkenzell
          • Wittichen
            • Burgfelsen
Walenta (1992)
      • Waldshut
        • Dachsberg
          • Urberg
Steen (2013)
    • Karlsruhe Region
      • Calw
Walenta (1992)
      • Freudenstadt
        • Bad Rippoldsau-Schapbach
          • Wildschapbach valley
            • Friedrich-Christian Mine
Gröbner (2017)
        • Freudenstadt
Gröbner (2017)
      • Pforzheim
        • Würm
Gröbner (2017)
      • Rhein-Neckar-Kreis
        • Weinheim
          • Hohensachsen
            • Kohlbach
Belendorff (2021)
  • Hesse
    • Darmstadt
      • Bergstraße
Belendorff (2021)
  • Lower Saxony
    • Goslar District
      • Clausthal-Zellerfeld
        • Oberschulenberg
    • Göttingen District
      • Harz (Landkreis Göttingen)
62. +1 other reference
  • Saxony
    • Erzgebirgskreis
      • Bärenstein
        • Niederschlag
Lapis (4)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Agios Konstantinos (Kamariza)
            • Kamariza Mines (Kamareza Mines)
LAPIS 24 (7/8) +1 other reference
            • Mercati mines
Branko Rieck collection
Italy
 
  • Lombardy
    • Varese Province
      • Cuasso al Monte
        • Cavagnano
Guastoni et al. (2017)
  • Sardinia
    • South Sardinia Province
      • Fluminimaggiore
Stara et al. (1996)
Giovanni Fraccaro collection
      • Gonnosfanadiga
        • Fenugu Sibiri Mine
Caboni et al. (2018)
Sabelli (2000)
  • Trentino-Alto Adige (Trentino-South Tyrol)
    • Trento Province (Trentino)
      • Frassilongo
        • Roveda
Ferretti et al. (2018)
      • Vignola-Falesina
Paolo Gasparetto et al. (2014)
  • Tuscany
    • Livorno Province
      • Campiglia Marittima
Senesi et al. (1999)
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane Cercle
        • Ouisselsate Caïdat
Witzke et al. (2006)
Namibia
 
  • Oshikoto Region
    • Tsumeb
Gebhard (1999)
Russia
 
  • Chelyabinsk Oblast
    • Karabash
      • Karabash ophiolite massif
        • Soimon Valley
Vladimir Yu. Karpenko data
Spain
 
  • Andalusia
    • Jaén
      • Andújar
Minerales y Minas de España et al. (2015)
  • Catalonia
    • Tarragona
      • Baix Camp
        • Alforja
Abella i Creus (2018)
UK
 
  • England
    • Cornwall
      • Hayle
        • Great Wheal Alfred (Alfred Consols)
Golley et al. (1995)
      • St Agnes
Golley et al. (1995)
      • St Hilary
Golley et al. (1995)
USA
 
  • Nevada
    • Pershing County
      • Antelope Mining District
Holmwood (2023)
- (n.d.) +1 other reference
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