Tučekite
A valid IMA mineral species
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About Tučekite
Karel Tuček
Formula:
Ni9Sb2S8
Colour:
Brass-yellow
Lustre:
Metallic
Hardness:
6
Specific Gravity:
6.15 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
Named in honor of Karel Tuček (21 January 1906, Nová Paka, Czechoslovakia - 26 August 1990, Písek, Czechoslovakia), Curator of the National Museum, Prague (Czech Republic). During Nazi occupation of Czechoslovakia in WWII, Karel was recruited by fellow mineralogist Radim Nováček (nováčekite) to the Czechoslovak resistance.
Name Encoding
CP1252:
Tucekite
Latin-1:
Tucekite
ASCII-7:
Tucekite
Unique Identifiers
Mindat ID:
4042
Long-form identifier:
mindat:1:1:4042:2
Similar Names
| Taseqite | A valid IMA mineral species | Na12Sr3Ca6Fe3Zr3Nb[(Si3O9)2(Si9O27)2SiO]Cl2(O,OH,H2O)3 |
IMA Classification of Tučekite
Approved
Classification of Tučekite
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
3.2.5.5
3 : SULFOSALTS
2 : ø = 4
3 : SULFOSALTS
2 : ø = 4
5.8.12
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 for Standard |
|---|---|---|
| Tuč | 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 Tučekite
Metallic
Transparency:
Opaque
Colour:
Brass-yellow
Hardness:
6 on Mohs scale
Hardness:
VHN20=718 kg/mm2 - Vickers
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
6.15 g/cm3 (Calculated)
Optical Data of Tučekite
Anisotropism:
very strong with deep brown and greyish-blue polarization colours
Colour in reflected light:
brownish-yellow
Pleochroism:
Weak
Chemistry of Tučekite
Mindat Formula:
Ni9Sb2S8
Element Weights:
Elements listed:
Common Impurities:
Co,Fe,As,Bi,Te
Crystallography of Tučekite
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 = 7.174(6) Å, c = 5.402(7) Å
Ratio:
a:c = 1 : 0.753
Unit Cell V:
278.02 ų (Calculated from Unit Cell)
Z:
1
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.76 Å | (10) |
| 2.38 Å | (8) |
| 2.28 Å | (8) |
| 1.850 Å | (8) |
| 4.33 Å | (7) |
| 1.793 Å | (7) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Tučekite
Place of Conservation of Type Material:
Type material is preserved in the British Museum, London, and the National Museum, Prague (Czechoslovakia).
Associated Minerals at Type Locality:
Other Language Names for Tučekite
Relationship of Tučekite to other Species
Member of:
Other Members of Hauchecornite Group:
| Arsenohauchecornite | Ni18Bi3AsS16 | Tet. |
| Arsenotučekite | Ni18Sb3AsS16 | Tet. 4mm : I4mm |
| Bismutohauchecornite | Ni9Bi2S8 | Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm |
| 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 |
Common Associates
Associations Based on Photo Data:
| 1 photo of Tučekite associated with Ullmannite | NiSbS |
Related Minerals - Strunz-mindat Grouping
| 2.BB. | Arsenotučekite | Ni18Sb3AsS16 |
| 2.BB. | Hrabákite | Ni9PbSbS8 |
| 2.BB. | 'UM2007-27-S:CuFeIrNiRh' | (Ni,Fe,Cu,Rh,Ir)11S9 |
| 2.BB. | Horomanite | Fe6Ni3S8 |
| 2.BB. | Samaniite | Cu2Fe5Ni2S8 |
| 2.BB.05 | Heazlewoodite | Ni3S2 |
| 2.BB.05 | 'UM2007-30-S:Fe' | Fe3S2 |
| 2.BB.05 | Vozhminite | (Ni,Co)4(As,Sb)S2 |
| 2.BB.05 | Oregonite | Ni2FeAs2 |
| 2.BB.10 | Hauchecornite | Ni9BiSbS8 |
| 2.BB.10 | Arsenohauchecornite | Ni18Bi3AsS16 |
| 2.BB.10 | Tellurohauchecornite | Ni9Bi(Te,Bi)S8 |
| 2.BB.10 | Jinxiuite | Ni18Bi2SbAsS16 |
| 2.BB.10 | Bismutohauchecornite | Ni9Bi2S8 |
| 2.BB.15 | Argentopentlandite | Ag(Fe,Ni)8S8 |
| 2.BB.15 | Shadlunite | (Pb,Cd)(Fe,Cu)8S8 |
| 2.BB.15 | Ferhodsite | (Fe,Rh,Ni,Ir,Cu,Pt)9S8 |
| 2.BB.15 | Cobaltpentlandite | Co9S8 |
| 2.BB.15 | 'UM2002-26-S:FeNi' | (Ni,Fe)9S8 |
| 2.BB.15 | Pentlandite | (NixFey)Σ9S8 |
| 2.BB.15 | Oberthürite | Rh3Ni32S32 |
| 2.BB.15 | Geffroyite | (Cu,Fe,Ag)9(Se,S)8 |
| 2.BB.15 | Kharaelakhite | (Cu,Pt,Pb,Fe,Ni)9S8 |
| 2.BB.15 | 'Manganoshadlunite' | (Mn,Pb,Cd)(Cu,Fe)8S8 |
| 2.BB.15 | Sugakiite | Cu(Fe,Ni)8S8 |
| 2.BB.15 | Godlevskite | (Ni,Fe)9S8 |
| 2.BB.15 | Wangyanite | PdNi8S8 |
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 Tučekite
mindat.org URL:
https://www.mindat.org/min-4042.html
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External Links:
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References for Tučekite
Reference List:
Localities for Tučekite
Showing 23 localities.
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
Australia | |
| Collins et al. (2004) |
| MM 1978 |
Canada | |
| Jackson-Brown et al. (2014) |
| Hora et al. (2006) |
France | |
| Picot et al. (1982) |
| Anthony et al. (1990) |
Germany | |
| Golze et al. (2013) +1 other reference |
| Reinhardt (1995) +2 other references |
| Wittern (2001) |
| Blass et al. (1992) |
Japan | |
| K. Nishikubo et al. (2005) +1 other reference |
Russia | |
| Rudashevskii N S et al. (1982) +2 other references |
South Africa | |
| Just et al. (1978) +1 other reference |
| Econ Geol (1986) |
| Just et al. (1978) +1 other reference |
| Bowers et al. (2007) +1 other reference |
| Cairncross et al. (1995) | |
Switzerland | |
| Stalder et al. (1998) +1 other reference |
UK | |
| Day (1999) |
| Rust et al. (1988) | |
| Day (1999) | |
| Day (1999) |
Ukraine | |
| Gornostayev et al. (2002) |
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