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Moolooite

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Formula:
Cu(C2O4) · 0.4H2O
Crystal System:
Orthorhombic
Name:
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).


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Classification of MoolooiteHide

Approved
10.AB.15

10 : ORGANIC COMPOUNDS
A : Salts of organic acids
B : Oxalates
50.1.6.1

50 : ORGANIC COMPOUNDS
1 : Oxalates
31.1.2

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

Optical Data of MoolooiteHide

Type:
Biaxial
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:
Moderate
Dispersion:
r > v

Chemical Properties of MoolooiteHide

Formula:
Cu(C2O4) · 0.4H2O
IMA Formula:
CuC2O4 · nH2O
Idealised Formula:
Cu(C2O4)

Crystallography of MoolooiteHide

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

Type Occurrence of MoolooiteHide

Synonyms of MoolooiteHide

Other Language Names for MoolooiteHide

German:Moolooit
Spanish:Moolooita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Copper9 photos of Moolooite associated with Copper on mindat.org.
Humboldtine6 photos of Moolooite associated with Humboldtine on mindat.org.
Analcime6 photos of Moolooite associated with Analcime on mindat.org.
Malachite6 photos of Moolooite associated with Malachite on mindat.org.
Whewellite3 photos of Moolooite associated with Whewellite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

10.AB.05HumboldtineFe2+(C2O4) · 2H2OMon. 2/m
10.AB.05LindbergiteMn2+(C2O4) · 2H2OMon. 2/m
10.AB.10GlushinskiteMg(C2O4) · 2H2OMon.
10.AB.20StepanoviteNaMgFe3+(C2O4)3 · 8-9H2OTrig. 3m : P3c1
10.AB.25MinguzziteK3Fe3+(C2O4)3 · 3H2OMon. 2/m : P21/b
10.AB.30WheatleyiteNa2Cu(C2O4)2 · 2H2OTric.
10.AB.35ZhemchuzhnikoviteNaMgAl(C2O4)3 · 8H2OTrig. 3m : P3c1
10.AB.40WeddelliteCa(C2O4) · (2.5-x)H2OTet. 4/m : I4/m
10.AB.45WhewelliteCa(C2O4) · H2OMon. 2/m : P21/b
10.AB.50CaoxiteCa(C2O4) · 3H2OTric.
10.AB.55Oxammite(NH4)2(C2O4) · H2OOrth. 2 2 2 : P21 21 2
10.AB.60NatroxalateNa2(C2O4)Mon.
10.AB.65Coskrenite-(Ce)(Ce,Nd,La)2(C2O4)(SO4)2 · 12H2OTric.
10.AB.70Levinsonite-(Y)(Y,Nd,La)Al(C2O4)(SO4)2 · 12H2OMon. 2/m
10.AB.75Zugshunstite-(Ce)(Ce,Nd,La)Al(C2O4)(SO4)2 · 12H2OMon.
10.AB.80NovgorodovaiteCa2(C2O4)Cl2 · 2H2OMon. 2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

31.1.1Oxammite(NH4)2(C2O4) · H2OOrth. 2 2 2 : P21 21 2
31.1.3WheatleyiteNa2Cu(C2O4)2 · 2H2OTric.
31.1.4GlushinskiteMg(C2O4) · 2H2OMon.
31.1.5WhewelliteCa(C2O4) · H2OMon. 2/m : P21/b
31.1.6WeddelliteCa(C2O4) · (2.5-x)H2OTet. 4/m : I4/m
31.1.7HumboldtineFe2+(C2O4) · 2H2OMon. 2/m
31.1.8StepanoviteNaMgFe3+(C2O4)3 · 8-9H2OTrig. 3m : P3c1
31.1.9ZhemchuzhnikoviteNaMgAl(C2O4)3 · 8H2OTrig. 3m : P3c1
31.1.10MinguzziteK3Fe3+(C2O4)3 · 3H2OMon. 2/m : P21/b

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 MoolooiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 MoolooiteHide

Localities for MoolooiteHide

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.
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.
France
 
  • 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
Germany
 
  • 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.
Italy
 
  • 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.
Kazakhstan
 
  • Kostanay Province (Qostanay Oblysy; Kostanai Oblast')
    • Rudny
Leon Hupperichs collection
Norway
 
  • Nord-Trøndelag
    • Røyrvik
Chisholm, J. E. Jones, G.C. Purvis & O.W. (1987): Hydrated copper oxalate, moolooite, in lichens. Mineralogical Magazine, 51, 715-718
Turkmenistan
 
  • 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].
USA
 
  • Michigan
    • Keweenaw Co.
      • Ahmeek
Mineralogy of Michigan (2004) Heinrich & Robinson
  • Utah
    • Emery Co.
http://www.excaliburmineral.com/mink-n.htm
Mineral and/or Locality  
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