Bismutohauchecornite
A valid IMA mineral species
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Formula:
Ni9Bi2S8
Colour:
Bronze-yellow
Hardness:
4½ - 5½
Specific Gravity:
6.25 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
For bismuth and relation to hauchecornite. Before the formal description, a few studies referred to the species as simply hauchecornite.
Unique Identifiers
Mindat ID:
658
Long-form identifier:
mindat:1:1:658:7
GUID
(UUID V4):
(UUID V4):
55c7a070-4026-4ce8-a74e-3a14d4792c72
IMA Classification of Bismutohauchecornite
Approved
First published:
1978
Classification of Bismutohauchecornite
2.BB.10
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
B : With Ni
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
B : With Ni
3.2.5.2
3 : SULFOSALTS
2 : ø = 4
3 : SULFOSALTS
2 : ø = 4
5.8.13
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
8 : Sulpharsenites etc. of Mn, Fe, Co and Ni
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
8 : Sulpharsenites etc. of Mn, Fe, Co and Ni
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Bhau | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Bismutohauchecornite
Transparency:
Opaque
Colour:
Bronze-yellow
Hardness:
4½ - 5½ on Mohs scale
Hardness:
VHN10=360 - 392 kg/mm2 - Vickers
Comment:
Source of 5.5 figure unknown, and unlikely to correspond to VHN data.
Density:
6.25 g/cm3 (Calculated)
Optical Data of Bismutohauchecornite
Anisotropism:
Weak
Bireflectance:
Very weak
Reflectivity:
Wavelength | R |
---|---|
440nm | 37.8% |
480nm | 41.7% |
520nm | 44.8% |
560nm | 47.0% |
600nm | 48.8% |
640nm | 49.6% |
680nm | 50.5% |
720nm | 51.2% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 51.2%.
Pleochroism:
Visible
Chemistry of Bismutohauchecornite
Mindat Formula:
Ni9Bi2S8
Elements listed:
Common Impurities:
Fe,Co,Pb,As
Crystallography of Bismutohauchecornite
Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/mmm
Setting:
P4/mmm
Cell Parameters:
a = 7.37 Å, c = 5.88 Å
Ratio:
a:c = 1 : 0.798
Unit Cell V:
319.38 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Elongated tabular crystals, grains, massive.
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.34 Å | (60) |
3.67 Å | (50) |
2.80 Å | (100) |
2.40 Å | (60) |
2.32 Å | (60) |
1.867 Å | (80) |
1.808 Å | (40) |
Comments:
Oktyabr mine, Russia.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Geological Setting:
Hydrothermal veins.
Type Occurrence of Bismutohauchecornite
General Appearance of Type Material:
Elongated, sometimes tabular, rectangular crystals from 10x30 to 200x700 microns.
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 77168.
Associated Minerals at Type Locality:
Reference:
Kovalenker, V.A., Evstigneeva, T.L., Begizov, V.D., Vyal'sov, L.N., Smirnov, A.V., Krakovetskii, Y.K. and Balbin, V.S. (1978) Hauchecornite from copper-nickel ores of the Oktyabr'skoe deposit. Trudy Mineralogicheskogo Muzeya Fersman Akademiya Nauk SSSR: 26: 201–205.
Synonyms of Bismutohauchecornite
Other Language Names for Bismutohauchecornite
German:Bismutohauchecornit
Spanish:Bismutohauchecornita
Relationship of Bismutohauchecornite to other Species
Member of:
Other Members of this group:
Arsenohauchecornite | Ni18Bi3AsS16 | Tet. |
Arsenotučekite | Ni18Sb3AsS16 | Tet. 4mm : I4mm |
Hauchecornite | Ni9BiSbS8 | Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm |
Hrabákite | Ni9PbSbS8 | Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm |
Tellurohauchecornite | Ni9Bi(Te,Bi)S8 | Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm |
Tučekite | Ni9Sb2S8 | Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm |
Related Minerals - Strunz-mindat Grouping
2.BB. | Horomanite | Fe6Ni3S8 |
2.BB. | Samaniite | Cu2Fe5Ni2S8 |
2.BB. | UM2007-27-S:CuFeIrNiRh | (Ni,Fe,Cu,Rh,Ir)11S9 |
2.BB. | Arsenotučekite | Ni18Sb3AsS16 |
2.BB. | Hrabákite | Ni9PbSbS8 |
2.BB.05 | Heazlewoodite | Ni3S2 |
2.BB.05 | Oregonite | Ni2FeAs2 |
2.BB.05 | Vozhminite | (Ni,Co)4(As,Sb)S2 |
2.BB.05 | UM2007-30-S:Fe | Fe3S2 |
2.BB.10 | Arsenohauchecornite | Ni18Bi3AsS16 |
2.BB.10 | Hauchecornite | Ni9BiSbS8 |
2.BB.10 | Tellurohauchecornite | Ni9Bi(Te,Bi)S8 |
2.BB.10 | Tučekite | Ni9Sb2S8 |
2.BB.15 | Argentopentlandite | Ag(Fe,Ni)8S8 |
2.BB.15 | Cobaltpentlandite | Co9S8 |
2.BB.15 | Geffroyite | (Cu,Fe,Ag)9(Se,S)8 |
2.BB.15 | Godlevskite | (Ni,Fe)9S8 |
2.BB.15 | Kharaelakhite | (Cu,Pt,Pb,Fe,Ni)9S8 |
2.BB.15 | Manganoshadlunite | (Mn,Pb,Cd)(Cu,Fe)8S8 |
2.BB.15 | Pentlandite | (NixFey)Σ9S8 |
2.BB.15 | Shadlunite | (Pb,Cd)(Fe,Cu)8S8 |
2.BB.15 | Sugakiite | Cu(Fe,Ni)8S8 |
2.BB.15 | UM2002-26-S:FeNi | (Ni,Fe)9S8 |
2.BB.15 | Ferhodsite | (Fe,Rh,Ni,Ir,Cu,Pt)9S8 |
2.BB.15 | Oberthürite | Rh3Ni32S32 |
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.
Internet Links for Bismutohauchecornite
mindat.org URL:
https://www.mindat.org/min-658.html
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External Links:
References for Bismutohauchecornite
Reference List:
Watkinson, D. H., Heslop, J. B., Ewert, W. D. (1975) Nickel sulphide-arsenide assemblages associated with uranium mineralization, Zimmer Lake area, Northern Saskatchewan. The Canadian Mineralogist, 13 (2) 198-204
Localities for Bismutohauchecornite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Austria | |
| Kolitsch et al. (2010) |
Canada | |
| Watkinson et al. (1975) |
China | |
| Anthony et al. (1997) |
Japan | |
| Soeda et al. (1975) +1 other reference |
| Handbook of Mineralogy. +1 other reference |
Russia (TL) | |
| Kovalenker et al. (1978) +1 other reference |
| Anatoly Kasatkin analytical data |
| Koroteev et al. (2017) +1 other reference |
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