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Cu2+(UO2)3(Se4+O3)2O2 · 8H2O
Named after Aimé Marthoz, born in Marche-en-Famenne, Belgium, September 13th 1894 and died in Brussels on June 12th 1962. Worked in Katanga in the DRCongo, then a Belgian colony.
This page provides mineralogical data about Marthozite.

Classification of Marthozite


4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
J : Selenites with additional anions, with H2O

7 : Hydrated Selenites, Tellurites and Sulfites containing Hydroxyl or Halogen

28 : Selenites, Selenates, Tellurites, and Tellurates
1 : Selenites

Optical Data of Marthozite

Biaxial (-)

Chemical Properties of Marthozite

IMA Formula:
Cu2+(UO2)3(Se4+O3)2O2 · 8H2O
Elements listed in formula:

Crystallography of Marthozite

Crystal System:
Cell Parameters:
a = 16.4 Å, b = 17.2 Å, c = 6.98 Å
a:b:c = 0.953 : 1 : 0.406
Unit Cell Volume:
V 1,968.92 ų (Calculated from Unit Cell)

Type Occurrence of Marthozite

Place of Conservation of Type Material:
Muséum national d'Histoire Naturelle, paris
Université de paris

Relationship of Marthozite to other Species

4.JJ.10GuilleminiteBa(UO2)3(Se4+O3)2O2 · 3H2O
4.JJ.15PiretiteCa(UO2)3(Se4+O3)2(OH)4 · 4H2O
4.JJ.20DemesmaekeritePb2Cu5(UO2)2(Se4+O3)6(OH)6 · 2H2O
4.JJ.25Haynesite(UO2)3(Se4+O3)2(OH)2 · 5H2O
28.1.1ChalcomeniteCuSe4+O3 · 2H2O
28.1.2ClinochalcomeniteCuSeO3 · 2H2O
28.1.6Haynesite(UO2)3(Se4+O3)2(OH)2 · 5H2O
28.1.9GuilleminiteBa(UO2)3(Se4+O3)2O2 · 3H2O
28.1.10DemesmaekeritePb2Cu5(UO2)2(Se4+O3)6(OH)6 · 2H2O
28.1.11MandarinoiteFe23+(Se4+O3)3 · 6H2O
28.1.12CobaltomeniteCoSe4+O3 · 2H2O
28.1.13AhlfelditeNiSeO3 · 2H2O

Other Names for Marthozite

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 Marthozite

Reference List:
American Mineralogist (1970): 55: 533.

Cooper, M.A. and Hawthorne, F.C. (2001) Structure topology and hydrogen bonding in marthozite, Cu 2+[(UO2)3(SeO3)2O2](H2O)8, a comparison with guilleminite, Ba[(UO2)3(SeO3)2O2](H2O)3. Canadian Mineralogist: 39: 797-807.

Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

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

Localities for Marthozite

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.
Czech Republic
  • Bohemia (Böhmen; Boehmen)
    • Ústí Region
      • Krušné Hory Mts (Erzgebirge)
        • Dubí (Eichwald)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)]
Democratic Republic of Congo (Zaïre) (TL)
  • Katanga (Shaba)
    • Katanga Copper Crescent
      • Kolwezi District
        • Kolwezi 92, 278-283
  • Wallis (Valais)
    • Le Trient Valley
      • Les Marécottes
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 269.
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