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Agardite-(La)

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Formula:
LaCu6(AsO4)3(OH)6 · 3H2O
Colour:
Grass-green to dull green, yellowish green to intense bluish green, rarely nearly colourless.
Lustre:
Sub-Vitreous, Resinous, Waxy
Hardness:
3 - 4
Specific Gravity:
3.65
Crystal System:
Hexagonal
Member of:
Name:
Named by Peter J. Modreski in 1983 for its relationship to the other Agardite series minerals.
Hide all sections | Show all sections

Classification of Agardite-(La)Hide

Approved
Approval Year:
1980
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
20.4.14

20 : Arsenates (also arsenates with phosphate, but without other anions)
4 : Arsenates of Group III metals (Al, rare earths)

Physical Properties of Agardite-(La)Hide

Sub-Vitreous, Resinous, Waxy
Transparency:
Transparent, Translucent
Colour:
Grass-green to dull green, yellowish green to intense bluish green, rarely nearly colourless.
Streak:
greenish white
Hardness:
3 - 4 on Mohs scale
Tenacity:
Brittle
Density:
3.65 g/cm3 (Measured)    3.62 g/cm3 (Calculated)

Optical Data of Agardite-(La)Hide

Type:
Uniaxial
Pleochroism:
Non-pleochroic

Chemical Properties of Agardite-(La)Hide

Formula:
LaCu6(AsO4)3(OH)6 · 3H2O
IMA Formula:
Cu2+6La(AsO4)3(OH)6 · 3H2O

Crystallography of Agardite-(La)Hide

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Cell Parameters:
a = 13.586 Å, c = 5.931 Å
Ratio:
a:c = 1 : 0.437
Unit Cell V:
948.07 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals acicular, prismatic, to 3 mm, in tufted groups, spherical rosettes.

Type Occurrence of Agardite-(La)Hide

Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 148987, 148988.
Geological Setting of Type Material:
Fluorite mine
Associated Minerals at Type Locality:

Synonyms of Agardite-(La)Hide

Other Language Names for Agardite-(La)Hide

Simplified Chinese:砷镧铜石
Traditional Chinese:砷鑭銅石

Relationship of Agardite-(La) to other SpeciesHide

Member of:
Other Members of this group:
Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Agardite-(Dy)(Dy,La)Cu6(AsO4)3(OH)6 · 3H2OHex.
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-(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.

Common AssociatesHide

Aurichalcite(Zn,Cu)5(CO3)2(OH)6
AzuriteCu3(CO3)2(OH)2
BaryteBaSO4
BastnäsiteName used for F-dominant members of the Bastnäsite Group for which the dominant REE element is not known.
CalciteCaCO3
CerussitePbCO3
ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
ConichalciteCaCu(AsO4)(OH)
Cuprian Adamite(Zn,Cu)2AsO4OH
FluoriteCaF2
GibbsiteAl(OH)3
HydrozinciteZn5(CO3)2(OH)6
MalachiteCu2(CO3)(OH)2
MimetitePb5(AsO4)3Cl
MottramitePbCu(VO4)(OH)
QuartzSiO2
SmithsoniteZnCO3
VanadinitePb5(VO4)3Cl
WulfenitePb(MoO4)
ZincaluminiteZn6Al6(SO4)2(OH)16 · 5H2O
Associated Minerals Based on Photo Data:
Cornwallite8 photos of Agardite-(La) associated with Cornwallite on mindat.org.
Bayldonite8 photos of Agardite-(La) associated with Bayldonite on mindat.org.
Adamite7 photos of Agardite-(La) associated with Adamite on mindat.org.
Malachite5 photos of Agardite-(La) associated with Malachite on mindat.org.
Azurite5 photos of Agardite-(La) associated with Azurite on mindat.org.
Duftite4 photos of Agardite-(La) associated with Duftite on mindat.org.
Pseudomalachite3 photos of Agardite-(La) associated with Pseudomalachite on mindat.org.
Conichalcite2 photos of Agardite-(La) associated with Conichalcite on mindat.org.
Baryte2 photos of Agardite-(La) associated with Baryte on mindat.org.
Goethite2 photos of Agardite-(La) associated with Goethite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.DL.05FoggiteCaAl(PO4)(OH)2 · H2OOrth.
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.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-(Ce)CeCu6(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.
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.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 · 7H2OTric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.4.1MansfielditeAlAsO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
20.4.2BulachiteAl2(AsO4)(OH)3 · 3H2OOrth.
20.4.3PharmacoalumiteKAl4(AsO4)3(OH)4 · 6.5H2OIso. 4 3m : P4 3m
20.4.4LuetheiteCu2Al2(AsO4)2(OH)4Mon. 2/m : P21/m
20.4.5ArsenogoyaziteSrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
20.4.6ArsenocrandalliteCaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m)
20.4.7Arsenoflorencite-(Ce)CeAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
20.4.8Arsenoflorencite-(La)LaAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
20.4.9Arsenoflorencite-(Nd)NdAl3(AsO4)2(OH)6Trig.
20.4.10Gerdtremmelite(Zn,Fe)(Al,Fe)2(AsO4)(OH)5Tric.
20.4.11Gasparite-(Ce)Ce(AsO4)
20.4.12Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
20.4.13Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
20.4.15GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2OHex.
20.4.16Retzian-(Ce)Mn2+2Ce(AsO4)(OH)4Orth. mmm (2/m 2/m 2/m) : Pban
20.4.17Retzian-(La)(Mn2+,Mg)2(La,Ce,Nd)(AsO4)(OH)4Orth. mmm (2/m 2/m 2/m) : Pban
20.4.18Retzian-(Nd)Mn2+2(Nd,Ce,La)(AsO4)(OH)4Orth. mmm (2/m 2/m 2/m) : Pban

Fluorescence of Agardite-(La)Hide

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.

References for Agardite-(La)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Modresky, P.J. (1983) Agardite-(La), a Chemically Complex Rare-Earth Arsenate from the Gallinas District, Lincoln Co., New Mexico. In Anthony, J. W., (editor), Oxidation Mineralogy of Base Metal Deposits, Fifth Joint Mineralogical Society of America - Friends of Mineralogy Symposium.
Fehr, T., Hochleitner, R. (1984) Agardit-La: Ein neues Mineral von Lavrion, Griechenland. Lapis: 1: 22,37. [in German]
Dunn, P.J., Fleischer, M., Langley, R.H., Shigley, J.E., Zilczer, J.A. (1985) New mineral names. American Mineralogist: 70: 871-881.

Internet Links for Agardite-(La)Hide

Localities for Agardite-(La)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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Carinthia
    • Gurktaler Alpen
      • St Veit an der Glan
        • Äußere Wimitz
Kolitsch, U., Blaß, G. & Auer, C. (2010): 1618) Bleihaltiger Agardit-(La) und Brookit von der Äußeren Wimitz, St. Veit an der Glan, Gurktaler Alpen. P. 203 in Niedermayr et al. (2010): Neue Mineralfunde aus Österreich LIX. Carinthia II, 200./120., 199-260.
Bulgaria
 
  • Sofiya Oblast (Sofia Oblast)
Kunov, A. Y.; Nakov, R. A.; Stanchev, C. D. (2002): First agardite-(Y), -(Nd), -(La) find in Bulgaria. Neues Jahrbuch fuer Mineralogie, Monatshefte 2002, 107-116.
France
 
  • Bourgogne-Franche-Comté
    • Territoire-de-Belfort
      • Giromagny
Hohl: "Minéraux et Mines du Massif Vosgien", Editions du Rhin (Mulhouse), 1994
  • Grand Est
    • Bas-Rhin
      • Villé Valley
        • Urbeis
N. Meisser2001 and 2002 Analysis
  • Occitanie
    • Aveyron
      • Monteils
- Favreau G., Eytier J-R., Eytier C. (2010), Les minéraux de la mine de Falgayrolles (Aveyron), Le Cahier des Micromonteurs, n°109
Patrice Queneau Collection
      • Najac
Jean Claude Dol
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Feldberg area
Brill, A. R. & Bär, W. (2017): Reevesit von der ehemaligen Grube Rotenbach am Feldberg, ein neues Mineral aus dem Schwarzwald. Mineralien-Welt, 28(1), 62-64.
      • Freudenstadt
Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Wolfach
        • Oberwolfach
          • Rankach valley
Handbook of Mineralogy
  • Lower Saxony
    • Harz
      • St Andreasberg District
        • Oder valley
Weiss: "Mineralfundstellen, Deutschland West", 1990
        • St Andreasberg
No reference listed
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)
Elbin, K. & Wendel, W. (1996): Lavendulan aus Lavrion. Lapis, 21 (11), 42-43; 62. ; Hanke, H. (1998): Laurion - ein Rückblick auf die Funde der letzten drei Jahre. Mineralien-Welt, 9 (2), 37-45.; J. Gröbner und U. Kolitsch (2002): Neufunde von Laurion aus den Jahren 2001 und 2002. Aufschluss 53 (5-6), 363-371.
GRÖBNER, J. (2001): Roter Skorodit und weitere ungewöhnliche Arsenate: Die Mineralien des Abbaus 132 der Grube Christiana, Lavrion/Griechenland. Lapis, 26 (11), 13-21.
            • Hilarion area
Hanke, H. (1998): Laurion - ein Rückblick auf die Funde der letzten drei Jahre. Mineralien-Welt, 9 (2), 37-45.
        • Sounion Area
          • Agia Varvara Mines (St Barbara Mines)
Italy
 
  • Sardinia
    • Carbonia-Iglesias Province
      • Domusnovas
        • Oridda
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
  • Trentino-Alto Adige (Trentino-Südtirol)
    • Trento Province
      • Valsugana
        • Novaledo
Rocchetti I., Gentile P. and Ferretti P. (2012): La Miniera di Frattasecca presso Malga Broi (Novaledo, Trentino-Alto Adige). Storia e nuove segnalazioni mineralogiche. Studi Trentini di Scienze Naturali, 92, pagg. 167-180.
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Rudawy Janowickie Mts
      • Jelenia Góra District
SiudaR., K. Gal-Solymos, Kruszewski L., 2006: Agardite-(La)-duftite and scorodite-köttigite-like mineral paragenesis from supergenic zone of the Miedzianka deposit (Rudawy Janowickie Mts., Poland) – preliminary report. Mineralogia Polonica Special Papers, 29, 192-195
Switzerland
 
  • Ticino (Tessin)
    • Malcantone
      • Alto Malcantone
        • Breno
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 24
UK
 
  • England
    • Cornwall
      • Mount's Bay District
        • St Hilary
Betterton, J. (2000) Famous Mineral Localities: Penberthy Croft Mine, St. Hilary, Cornwall, England. UK Journal of Mines & Minerals, 20, 7-37
      • St Erth - Gwithian Area
        • Hayle
          • Great Wheal Alfred (Alfred Consols)
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    • Cumbria
      • Caldbeck Fells
        • Carrock Fell
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
        • Deer Hills
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
USA
 
  • California
    • San Benito Co.
      • Diablo Range
        • New Idria District
          • San Benito River headwaters area
            • Dallas Gem Mine area
              • Santa Rita Peak
www.mineralsocal.org
  • New Mexico
    • Lincoln Co.
      • Red Cloud District
        • Gallinas Mts
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
Mineral and/or Locality  
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