LIVE REPORT! Gold and Silver Deposits in Colorado Symposium 2017 - last updated 1 hour ago. Click here to watch.
Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Click here to sponsor this page.
Cu(C2O4) · 0.4H2O
Named after the type locality (Mooloo Downs Station, Australia).
Compare other Cu-bearing oxalate minerals: middlebackite, wheatleyite and antipinite.

May be a biomineral formed by the action of lichens (Acarospora rugulosa, Lecidea inops, Lecidea lactea) growing on cupriferous rocks (vide Burford et al., 2003).

Classification of Moolooite


A : Salts of organic acids
B : Oxalates

1 : Oxalates

31 : Oxalates, Citrates, Mellitates and Acetates
1 : Oxalates

Optical Data of Moolooite

RI values:
nα = 1.570 nγ = 1.950
Max Birefringence:
δ = 0.380
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
r > v

Chemical Properties of Moolooite

Cu(C2O4) · 0.4H2O
IMA Formula:
CuC2O4 · nH2O
Idealised Formula:
Elements listed in formula:

Crystallography of Moolooite

Crystal System:
Cell Parameters:
a = 5.4 Å, b = 5.57 Å, c = 2.54 Å
a:b:c = 0.969 : 1 : 0.456
Unit Cell Volume:
V 76.40 ų (Calculated from Unit Cell)

Type Occurrence of Moolooite

Relationship of Moolooite to other Species

10.AB.05HumboldtineFe2+(C2O4) · 2H2O
10.AB.05LindbergiteMn2+(C2O4) · 2H2O
10.AB.10GlushinskiteMg(C2O4) · 2H2O
10.AB.20StepanoviteNaMgFe3+(C2O4)3 · 8-9H2O
10.AB.25MinguzziteK3Fe3+(C2O4)3 · 3H2O
10.AB.30WheatleyiteNa2Cu(C2O4)2 · 2H2O
10.AB.35ZhemchuzhnikoviteNaMgAl(C2O4)3 · 8H2O
10.AB.40WeddelliteCa(C2O4) · (2.5-x)H2O
10.AB.45WhewelliteCa(C2O4) · H2O
10.AB.50CaoxiteCa(C2O4) · 3H2O
10.AB.55Oxammite(NH4)2(C2O4) · H2O
10.AB.65Coskrenite-(Ce)(Ce,Nd,La)2(C2O4)(SO4)2 · 12H2O
10.AB.70Levinsonite-(Y)(Y,Nd,La)Al(C2O4)(SO4)2 · 12H2O
10.AB.75Zugshunstite-(Ce)(Ce,Nd,La)Al(C2O4)(SO4)2 · 12H2O
10.AB.80NovgorodovaiteCa2(C2O4)Cl2 · 2H2O
31.1.1Oxammite(NH4)2(C2O4) · H2O
31.1.3WheatleyiteNa2Cu(C2O4)2 · 2H2O
31.1.4GlushinskiteMg(C2O4) · 2H2O
31.1.5WhewelliteCa(C2O4) · H2O
31.1.6WeddelliteCa(C2O4) · (2.5-x)H2O
31.1.7HumboldtineFe2+(C2O4) · 2H2O
31.1.8StepanoviteNaMgFe3+(C2O4)3 · 8-9H2O
31.1.9ZhemchuzhnikoviteNaMgAl(C2O4)3 · 8H2O
31.1.10MinguzziteK3Fe3+(C2O4)3 · 3H2O

Other Names for Moolooite

Name in Other Languages:

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 Moolooite

Reference List:
Schmittler, H. (1968): Structural principle of disordered copper(II) oxalate (CuC2O4.nH2O). Monatsber. Deut. Akad. Wiss. Berlin, 10, 581-604. (in German.)

Gleizes, A., Maury, F. & Galy, J. (1980): Crystal structure and magnetism of sodium bis(oxalato)cuprate(II)dihydrate, Na2Cu(C2O4)2.2H2O. A deductive proposal for the structure of copper oxalate, CuC2O4.xH2O (O <= x <= 1). Inorg. Chem. 19, 2074-2078.

Clarke, R. M. & Williams, I. R. (1986): Moolooite, a naturally occurring hydrated copper oxalate from western Australia. Mineralogical Magazine 50, 295-298.

American Mineralogist (1987): 72: 1025-1026.

Burford, E.P., Kierans, M., Gadd, G.M. (2003): Geomycology: fungi in mineral substrata. Mycologist: 17(3): 98-107; DOI: 10.1017/S0269915X03003112

Internet Links for Moolooite URL:
Please feel free to link to this page.

Localities for Moolooite

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.
(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 (TL)
  • Western Australia
    • Upper Gascoyne Shire
MM 1987, 295-8
Clarke, R.M., Williams, I.R. (1986) Moolooite, a naturally occurring hydrated copper oxalate from Western Australia, Mineralogical Magazine (June 1986) Vol.50, pp295-298.
  • Grand Est
    • Haut-Rhin
Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Nantiat
        • Vaulry
          • Vaulry Mines
Patrice Queneau Collection
  • Baden-Württemberg
    • Black Forest
      • Wolfach
        • Oberwolfach
          • Rankach valley
U. Kolitsch, J. Gröbner, F. Brandstätter and R. Bayerl (2010): Neufunde aus der Grube Clara im mittleren Schwarzwald (IV): Calcioandyrobertsit, Cotunnit, Gerhardtit, Khaidarkanit, Lukrahnit, Mckinstryit, Moolooit, Rhabdophan-(La), Rouait und Uricit. Lapis 35 (9), 22-27; 62 (in German).
  • Thuringia
    • Harz
      • Stempeda
Thomas Witzke collection; J. Gröbner & J. Wesiger (2008): Die Mineralien des Kupferschieferbergbaus an südlichen Harzrand bei Ilfeld in Thüringen. Mineralien-Welt 19 (2), 18-28.
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Antigorio Valley
          • Devero Valley
            • Baceno
              • Devero Alp
Guastoni, A. (2009): Monte Cervandone. Recenti novità mineralogiche. Rivista Mineralogica Italiana 35, 38-48.
  • Kostanay Province (Qostanay Oblysy; Kostanai Oblast')
    • Rudny
Leon Hupperichs collection
  • Nord-Trøndelag
    • Røyrvik
Chisholm, J. E. Jones, G.C. Purvis & O.W. (1987): Hydrated copper oxalate, moolooite, in lichens. Mineralogical Magazine, 51, 715-718
  • Balkan Province
    • Cheleken Peninsula
Lebedev, L.M., Nikitina, J.B. (1983): The Cheleken ore forming system. Russ. Acad. Sci., Moscow (in Russian.) [cited in Hofmann & Bernasconi, 1989].
  • Michigan
    • Keweenaw Co.
      • Ahmeek
Mineralogy of Michigan (2004) Heinrich & Robinson
  • Utah
    • Emery Co.
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 24, 2017 21:48:24 Page generated: July 20, 2017 10:09:56
Go to top of page