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Bazhenovite

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About BazhenoviteHide

Formula:
Ca8S2(S3)(S2O3)(OH)12 · 20H2O
Colour:
Orange to yellow
Lustre:
Vitreous, Pearly
Hardness:
2
Specific Gravity:
1.83
Crystal System:
Monoclinic
Name:
For Al'fred Georgievich Bazhenov, geochemist and petrologist, and his wife, Lyudmila Fedorovna Bazhenova, analytical chemist, of the Il'menskii Preserve, Miass, Russia.
A mineral with sulphide S2-, trisulphide (S3)2- and thiosulphate (S2O3)2- anions.

However, according to Bindi et al. (2005), the presence of (S2O3)2- anions in bazhenovite is doubtful.

Compare sulfhydrylbystrite.


Classification of BazhenoviteHide

Approved
Approval Year:
1986
2.FD.50

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
29.9.3.1

29 : HYDRATED ACID AND NORMAL SULFATES
9 : Miscellaneous
4.1

4 : Oxysulphides

Physical Properties of BazhenoviteHide

Vitreous, Pearly
Transparency:
Transparent, Translucent
Colour:
Orange to yellow
Streak:
Light yellow
Hardness:
Tenacity:
Brittle
Cleavage:
Very Good
on {010}
Fracture:
Irregular/Uneven
Density:
1.83 g/cm3 (Measured)    1.845 g/cm3 (Calculated)

Optical Data of BazhenoviteHide

Type:
Biaxial (+)
RI values:
nα = 1.595 nβ = 1.619 nγ = 1.697
2V:
Measured: 60° , Calculated: 60°
Max Birefringence:
δ = 0.102
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v or r < v
Pleochroism:
Strong
Comments:
X = deep yellow-green, Y = greenish yellow, Z = pale greenish yellow; Orientation: X = b, Y = a, Z vs. c = 30°

Chemical Properties of BazhenoviteHide

Formula:
Ca8S2(S3)(S2O3)(OH)12 · 20H2O
IMA Formula:
Ca8S5(S2O3)(OH)12 · 20H2O

Crystallography of BazhenoviteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 8.45 Å, b = 17.47 Å, c = 8.24 Å
β = 119.5°
Ratio:
a:b:c = 0.484 : 1 : 0.472
Unit Cell V:
1,058.70 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Bladed or platy crystals, flattened on {010} and elongated along [001], showing {110}, {011}, {101} and {111}

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.76 (10)
4.39 (10)
1.996 (7)
2.91 (6)
2.81 (5)
2.62 (5)
2.28 (5)
Comments:
Recorded on type material

Type Occurrence of BazhenoviteHide

General Appearance of Type Material:
Bladed or platy, elongated crystals to 5 mm, in aggregates to 1 cm
Place of Conservation of Type Material:
A. E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia.
Geological Setting of Type Material:
Among the melt products of an old, burning coal dump
Associated Minerals at Type Locality:

Synonyms of BazhenoviteHide

Other Language Names for BazhenoviteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Portlandite1 photo of Bazhenovite associated with Portlandite on mindat.org.
Oldhamite1 photo of Bazhenovite associated with Oldhamite on mindat.org.
Sulphur1 photo of Bazhenovite associated with Sulphur on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.FD.UKI-2004-(OS:BiCuPb)PbCu4Bi4S2O16 (?)Tet.
2.FD.05KermesiteSb2S2OTric. 1 : P1
2.FD.10Viaeneite(Fe,Pb)4S8OMon.
2.FD.20ErditeNaFeS2 · 2H2OMon. 2/m : B2/b
2.FD.25CoyoteiteNaFe3S5 · 2H2OTric.
2.FD.30Haapalaite(Fe2+,Ni)2(Mg,Fe2+)1.61S2(OH)3.22Hex.
2.FD.30Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6Hex.
2.FD.30Yushkinite(Mg,Al)V4+S2(OH)2Hex.
2.FD.35TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
2.FD.40WilhelmramsayiteCu3FeS3·2H2OOrth. mmm (2/m 2/m 2/m) : Pmmm
2.FD.45VyalsoviteFeCaAlS(OH)5Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

4.2KermesiteSb2S2OTric. 1 : P1
4.3SarabauiteCaSb3+10S6O10Mon. 2/m : B2/b
4.4SchöllhorniteNa0.3CrS2 · H2OTrig.
4.5Yushkinite(Mg,Al)V4+S2(OH)2Hex.
4.6VyalsoviteFeCaAlS(OH)5Orth.
4.7Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6Hex.
4.8TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
4.9Haapalaite(Fe2+,Ni)2(Mg,Fe2+)1.61S2(OH)3.22Hex.
4.10ApuaniteFe2+Fe3+4Sb3+4O12STet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.11VersiliaiteFe2Fe4Sb6O16SOrth.

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 BazhenoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Chesnokov, B. V., Polyakov, V. O. and Bushmakin, A. F. (1987): Bazhenovite CaS5.CaS2O3.6Ca(OH)2.20H2O - a new mineral. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 116, 737-743 (in Russian). - American Mineralogist (1989), 74, 500 (abstract).
Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 48.
Bindi, L., Bonazzi, P., Dei, L., Zoppi, A. (2005): Does bazhenovite structure really contain thiosulphate group? A structural and spectroscopic study of a sample from the type-locality. American Mineralogist 90, 1556-1562.

Internet Links for BazhenoviteHide

Localities for BazhenoviteHide

ⓘ - 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
 
  • Hainaut Province (Henegouwen; Hennegau)
    • Charleroi
Collection Elmar Lackner
http://www.mindat.org/forum.php?read,20,80367,80385#msg-80385
France
 
  • Occitanie
    • Aude
      • Padern
Berbain, C. , Favreau, G. (1998) : Les anciennes mines de Padern-Montgaillard (Aude) Premier complément. Le cahier des micromonteurs, 4-1998, p 14-26
    • Aveyron
Eytier J.R. & Ch., Favreau G., Devouard B., Vigier J. (2004), Minéraux de pyrométamorphisme de Lapanouse-de Sévérac (Aveyron), Cahier des Micromonteurs, n°85, pp: 3-58
Germany
 
  • North Rhine-Westphalia
    • Aachen
      • Eschweiler
Christophe Boutry Collection
    • Sauerland
      • Iserlohn
        • Letmathe
Bender, D. and Krimmelbein, W. (1994) Aktuelle Übersicht: Mineralien der Zinkhütte Genna/Sauerland. Stand Juni 1994. Mineralien-Welt, 4/94, 10.
  • Thuringia
    • Gera
      • Ronneburg U deposit
T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Chelyabinsk coal basin
          • Korkino
ZVMO,(1987) 116, 737-743; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
UK
 
  • England
      • North Norfolk
        • Runton
Colleen Thomson Collection and photo
Mineral and/or Locality  
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