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About ViaeneiteHide

Willy Viaene (1940-2000)
3½ - 4½
Crystal System:
Named after Professor Willy A. Viaene (born 22 January 1940 in Staden, Belgium - died 13 March 2000), Katholieke Universiteit Leuven, Belgium.
An unusual species characterised by mixed sulphur valencies. Many similar (intermediate/mixed-valence) species, usually Fe-dominant, are known from carbonate-hosted Zn-Pb deposits; compare especially 'UM1995-35-SO:FePb'; Unnamed (Fe Pyrosulphite), Unnamed (Fe Sulphoxylane), Unnamed (Fe Sulphite), Unnamed (Fe Subsulphite); thiosulphates: UM1995-34-SO:Fe and Unnamed (Fe Thiosulphate II). Compare also Unnamed (Fe Oxysulphide).

When viaeneite is exposed to air it tarnishes within a few weeks.

Compare also albertiniite - another mineral with untypical S valence.

Classification of ViaeneiteHide

Approval Year:

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
D : With O, OH, H2O
Dana 7th ed.:

Physical Properties of ViaeneiteHide

3½ - 4½ on Mohs scale

Chemical Properties of ViaeneiteHide


Crystallography of ViaeneiteHide

Crystal System:
Cell Parameters:
a = 9.717 (8) Å, b = 7.280 (6) Å, c = 6.559 (7) Å
β = 95.00(3)°
a:b:c = 1.335 : 1 : 0.901
Unit Cell V:
462.22 ų (Calculated from Unit Cell)
Probable primitive.

Type Occurrence of ViaeneiteHide

Synonyms of ViaeneiteHide

Other Language Names for ViaeneiteHide


Related Minerals - Nickel-Strunz GroupingHide

2.FD.UKI-2004-(OS:BiCuPb)PbCu4Bi4S2O16 (?)Tet.
2.FD.05KermesiteSb2S2OTric. 1 : P1
2.FD.20ErditeNaFeS2 · 2H2OMon. 2/m : B2/b
2.FD.25CoyoteiteNaFe3S5 · 2H2OTric.
2.FD.40WilhelmramsayiteCu3FeS3·2H2OOrth. mmm (2/m 2/m 2/m) : Pmmm
2.FD.50BazhenoviteCa8S2(S3)(S2O3)(OH)12 · 20H2OMon. 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 ViaeneiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kucha, H., Osuch, W., Elsen, J. (1995) Calculation and refinement of cell parameters of viaeneite from electron diffraction patterns. Neues Jahrbuch für Mineralogie, Monatshefte, 433-443.
Mineralogical Record (xxxx) 28, 224.
Kucha, H., Osuch, W., Elsen, J. (1996) Viaeneite, (Fe,Pb)4S8O, a new mineral with mixed sulphur valencies from Engis, Belgium. European Journal of Mineralogy, 8, 93-102.

Internet Links for ViaeneiteHide

Localities for ViaeneiteHide

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.
Belgium (TL)
  • Wallonia
    • Liège
      • Engis
Kucha, H., Osuch, W., Elsen, J. (1996) Viaeneite, (Fe,Pb)4S8O, a new mineral with mixed sulphur valencies from Engis, Belgium. European Journal of Mineralogy, 8(1), 93-102.; Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Belgium, 304 pages (in French).
  • Oruro
    • Dalence Province
      • Santa Fé mining district
Jiménez-Franco, A., Alfonso Abella, M. P., Canet Miquel, C., & Trujillo, J. E. (2018). Mineral chemistry of In-bearing minerals in the Santa Fe mining district, Bolivia. Andean Geology, 45(3), 410-432.
Mineral and/or Locality  
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