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Shadlunite
A valid IMA mineral species
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About Shadlunite
Formula:
(Pb,Cd)(Fe,Cu)8S8
Colour:
Yellow-gray
Lustre:
Metallic
Hardness:
4
Specific Gravity:
4.72 (Calculated)
Crystal System:
Isometric
Member of:
Name:
Named in honor of Tatiana Nikolaevna Shadlun (Татьяна Николаевна Шадлун) (10 June 1912, Kiev - May 1996), Russian mineralogist, professor, and an expert on ore minerals.
This page provides mineralogical data about Shadlunite.
Unique Identifiers
Mindat ID:
3628
Long-form identifier:
mindat:1:1:3628:9
GUID
(UUID V4):
(UUID V4):
22f74a05-40c5-4aa0-b5ff-745d8dbcffea
IMA Classification of Shadlunite
Approved
IMA Formula:
(Fe,Cu)8(Pb,Cd)S8
First published:
1973
Classification of Shadlunite
2.BB.15
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
2.7.1.4
2 : SULFIDES
7 : AmBnXp, with (m+n):p = 9:8
2 : SULFIDES
7 : AmBnXp, with (m+n):p = 9:8
3.6.11
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
6 : Sulphides etc. of Sb and Pb
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
6 : Sulphides etc. of Sb and Pb
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 |
---|---|---|
Slu | 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 Shadlunite
Metallic
Transparency:
Opaque
Colour:
Yellow-gray
Streak:
Light grayish yellow
Hardness:
4 on Mohs scale
Hardness:
VHN20=210 kg/mm2 - Vickers
Density:
4.72 g/cm3 (Calculated)
Optical Data of Shadlunite
Anisotropism:
Weakly
Bireflectance:
Weakly
Reflectivity:
Wavelength | R |
---|---|
440nm | 19.0% |
460nm | 20.1% |
500nm | 22.5% |
540nm | 24.8% |
580nm | 26.8% |
620nm | 28.3% |
660nm | 30.0% |
700nm | 31.0% |
740nm | 31.5% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 31.5%.
Colour in reflected light:
Grayish-yellow
Internal Reflections:
None
Pleochroism:
Weak
Chemistry of Shadlunite
Mindat Formula:
(Pb,Cd)(Fe,Cu)8S8
Crystallography of Shadlunite
Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 10.91 Å
Unit Cell V:
1,298.60 ų (Calculated from Unit Cell)
Z:
4
Twinning:
polysynthetic twinning
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.29 Å | (100) |
1.925 Å | (90) |
3.84 Å | (40) |
2.11 Å | (40) |
5.42 Å | (30) |
3.16 Å | (20) |
1.666 Å | (20) |
Comments:
Mayak Mine, Talnakh Cu-Ni Deposit, Noril'sk, Russia. The data are from the type description.
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]) |
Type Occurrence of Shadlunite
General Appearance of Type Material:
Irregular grains, hundredths of a mm to 0.4 mm in size and as veinlets less than 0.1 mm, mostly in cubanite, also in talnakhite ores.
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 75510.
Associated Minerals at Type Locality:
Reference:
Evstigneeva, T.L., Genkin, A.D., Troneva, N.V., Filimonova, A.A., Tsepin, A.I. (1973) Shadlunite, a new sulfide of copper, iron, lead, manganese, and cadium from copper-nickel ores. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 102(1): 63-74.
Synonyms of Shadlunite
Other Language Names for Shadlunite
Relationship of Shadlunite to other Species
Member of:
Other Members of this group:
Argentopentlandite | Ag(Fe,Ni)8S8 | Iso. m3m (4/m 3 2/m) : Fm3m |
Cobaltpentlandite | Co9S8 | Iso. m3m (4/m 3 2/m) : Fm3m |
Geffroyite | (Cu,Fe,Ag)9(Se,S)8 | Iso. m3m (4/m 3 2/m) : Fm3m |
Oberthürite | Rh3Ni32S32 | Iso. |
Pentlandite | (NixFey)Σ9S8 | Iso. m3m (4/m 3 2/m) : Fm3m |
Sugakiite | Cu(Fe,Ni)8S8 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
Common Associates
Associated Minerals Based on Photo Data:
8 photos of Shadlunite associated with Talnakhite | Cu9(Fe,Ni)8S16 |
7 photos of Shadlunite associated with Galena | PbS |
3 photos of Shadlunite associated with Chalcopyrite | CuFeS2 |
3 photos of Shadlunite associated with Magnetite | Fe2+Fe3+2O4 |
3 photos of Shadlunite associated with Silver | Ag |
2 photos of Shadlunite associated with Taimyrite | (Pd,Cu,Pt)3Sn |
2 photos of Shadlunite associated with Pentlandite | (NixFey)Σ9S8 |
1 photo of Shadlunite associated with Sphalerite | ZnS |
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 | Bismutohauchecornite | Ni9Bi2S8 |
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 | 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 Shadlunite
mindat.org URL:
https://www.mindat.org/min-3628.html
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References for Shadlunite
Reference List:
Localities for Shadlunite
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.
Russia (TL) | |
| Evstigneeva et al. (1973) +4 other references |
Yevstigneyeva et al. (1973) | |
USA | |
| McSwiggen (1999) |
| Castor et al. (2004) |
Quick NavTopAbout ShadluniteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Oktyabrsky Mine, Talnakh Cu-Ni Deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia