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NaMgFe3+(C2O4)3 · 8-9H2O
Light green
Named after Pavel Ivanovich Stepanov (1880-1947), director Coal Geology Division, Institute of Geological Sciences (Moscow).
This page provides mineralogical data about Stepanovite.

Classification of Stepanovite


A : Salts of organic acids
B : Oxalates

1 : Oxalates

31 : Oxalates, Citrates, Mellitates and Acetates
1 : Oxalates URL:
Please feel free to link to this page.

Type Occurrence of Stepanovite

Year of Discovery:

Physical Properties of Stepanovite

Light green
Hardness (Mohs):

Crystallography of Stepanovite

Crystal System:
Cell Parameters:
a = 9.28Å, c = 36.67Å
a:c = 1 : 3.952
Unit Cell Volume:
V 2,734.88 ų (Calculated from Unit Cell)
Note: American Mineralogist (1964) 49, 442-443 says in a note: "data given for a:c and Z are inconsistent with the value a 9.28 kX; perhaps it is a typographical error for a 9,78 kX."

Optical Data of Stepanovite

Uniaxial (-)
RI values:
nω = 1.515 nε = 1.417
Max Birefringence:
δ = 0.098
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Stepanovite

NaMgFe3+(C2O4)3 · 8-9H2O
All elements listed in formula:
Analytical Data:
Readily soluble in water.

Relationship of Stepanovite to other Species

10.AB.05HumboldtineFe2+(C2O4) · 2H2O
10.AB.05LindbergiteMn2+(C2O4) · 2H2O
10.AB.10GlushinskiteMg(C2O4) · 2H2O
10.AB.15MoolooiteCu(C2O4) · 0.4H2O
10.AB.25MinguzziteK3Fe3+(C2O4)3 · 3H2O
10.AB.30WheatleyiteNa2Cu(C2O4)2 · 2H2O
10.AB.35ZhemchuzhnikoviteNaMgAl(C2O4)3 · 8H2O
10.AB.40WeddelliteCa(C2O4) · 2H2O
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
31.1.2MoolooiteCu(C2O4) · 0.4H2O
31.1.3WheatleyiteNa2Cu(C2O4)2 · 2H2O
31.1.4GlushinskiteMg(C2O4) · 2H2O
31.1.5WhewelliteCa(C2O4) · H2O
31.1.6WeddelliteCa(C2O4) · 2H2O
31.1.7HumboldtineFe2+(C2O4) · 2H2O
31.1.9ZhemchuzhnikoviteNaMgAl(C2O4)3 · 8H2O
31.1.10MinguzziteK3Fe3+(C2O4)3 · 3H2O

Other Names for Stepanovite

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 Stepanovite

Reference List:
Nefedov, Y.L. (1953), Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 82: 311.

Knipovich, Yu.N., Komkov, A.I. and Nefedov, E.I. (1963): On stepanovite and the new mineral zhemchuzhnikovite. Trudy Vses. Nauchno-Issled. Geol. Inst. (V.S.E.G.E.I.), 96, 131-135 (in Russian).

American Mineralogist (1964): 49: 442-443. [; abstract; also with note on possibly misprinted cell parameter a]

Internet Links for Stepanovite

Localities for Stepanovite

(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.
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Polar Yakutia
        • Bulun District
          • Lena River Basin
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Nefedov E I (1953) Report on new minerals discovered by him p.317 in V. A. Mokievsky. The scientific session of the Federov Institute together with the All-Union Mineralogical Society, Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 82, issue 4, 311-317
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