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Stibioústalečite

A valid IMA mineral species
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Formula:
(Cu4Cu2)(Cu4Cu+2)(Sb2Te2)Se12Se
Colour:
dark grey
Lustre:
Metallic
Hardness:
3½ - 4
Specific Gravity:
5.676 (Calculated)
Crystal System:
Isometric
Name:
Stibioústalečite ("stibio-oostaletchite") is named after its type locality Ústaleč and its chemical composition, being the (Sb/Te) end-member in the ústalečite series. The name is in analogy with the proposal of Biagioni et al. (2020a) for the goldfieldite series.
Unique combination of elements (at the upload time). Somewhat comparable to UM1985-20-S:AsCuSbSeTe.
The (Se12Se) analogue of (S12S) stibiogoldfieldite.


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Name EncodingHide

CP1252:
Stibioústalecite
Latin-1:
Stibioústalecite
ASCII-7:
Stibioustalecite

Unique IdentifiersHide

Mindat ID:
55692
Long-form identifier:
mindat:1:1:55692:1

IMA Classification of StibioústalečiteHide

IMA status:
Approved
IMA Formula:
Cu1+6Cu1+6(Sb3+2Te4+2)Se2-13

Classification of StibioústalečiteHide

Strunz-mindat (2026):
2.GB.

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
B : Neso-sulfarsenites, etc. with additional S

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
SúčIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of StibioústalečiteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Dark grey
Streak:
Grey
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
Fracture:
Conchoidal
Density:
5.676 g/cm3 (Calculated)

Optical Data of StibioústalečiteHide

Reflectivity:
WavelengthR1 (%)
400nm32.8%
420nm33.1%
440nm33.1%
460nm33.2%
470nm33.3%
480nm33.3%
500nm33.3%
520nm33.2%
540nm33.1%
546nm33.2%
560nm33.1%
580nm33.1%
589nm33.1%
600nm33.1%
620nm33.0%
640nm33.0%
650nm33.0%
660nm32.9%
680nm32.9%
700nm32.9%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 33.3%.
Colour in reflected light:
grey
Internal Reflections:
none

Chemistry of StibioústalečiteHide

Mindat Formula:
(Cu4Cu2)(Cu4Cu+2)(Sb2Te2)Se12Se
Element Weights:
Element% weight
Se44.869 %
Cu33.332 %
Te11.155 %
Sb10.645 %

Calculated from ideal end-member formula.
Elements listed:
Cu, Sb, Se, Te - search for minerals with similar chemistry

Crystallography of StibioústalečiteHide

Crystal System:
Isometric
Class (H-M):
43m - Hextetrahedral
Space Group:
I43m
Cell Parameters:
a = 10.6975(16) Å
Unit Cell V:
1,224.18 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.828 Å(10)
3.126 Å(100)
2.894 Å(11)
2.552 Å(9)
1.977 Å(11)
1.914 Å(71)
1.632 Å(33)
1.353 Å(9)
Locality:
Ústaleč U occurrence (Austaletz U occurrence), Ústaleč, Nalžovské Hory, Klatovy District, Plzeň Region, Czech Republic

Type Occurrence of StibioústalečiteHide

Type Locality:
ⓘ Ústaleč U occurrence (Austaletz U occurrence), Ústaleč, Nalžovské Hory, Klatovy District, Plzeň Region, Czech Republic
General Appearance of Type Material:
anhedral grains up to 0.1–0.3 mm in size
Place of Conservation of Type Material:
mineralogical collections of the Department of Mineralogy and Petrology, National Museum in Prague, Cirkusová 1740, 19300 Praha 9, Czech Republic, catalogue number P1P 7/2021
Geological Setting of Type Material:
The hydrothermal uranium mineralization
Associated Minerals at Type Locality:
BerzelianiteCalciteHakite-(Hg)Uraninite

Other Language Names for StibioústalečiteHide

Relationship of Stibioústalečite to other SpeciesHide

Member of:
Ústalečite Subgroup > Tetrahedrite Group
Other Members of Ústalečite Subgroup:
Arsenoústalečite(Cu4Cu2)(Cu4Cu+2)(As2Te2)Se12SeIso. 43m : I43m

Related Minerals - Strunz-mindat GroupingHide

2.GB.'Polybasite-Tac'[Ag6Sb2S7][Ag9CuS4]Trig. 3m(32/m) : P3m1
2.GB.Kenoargentotetrahedrite-(Zn)[Ag6]4+(Cu4Zn2)Sb4S12◻Iso. 43m : I43m
2.GB.Argentotetrahedrite-(Hg)Ag6(Cu4Hg2)Sb4S12SIso. 43m : I43m
2.GB.Annivite-(Zn)Cu6(Cu4Zn2)Bi4S12SIso. 43m : I43m
2.GB.Pošepnýite(Cu+3◻3)(Hg2+4Cu+2)Sb4Se12(Se0.5◻0.5)Iso. 43m : I43m
2.GB.Tennantite-(Cu)Cu6(Cu4Cu2)As4S12SIso. 43m : I43m
2.GB.Argentopolybasite[Ag6Sb2S7][Ag9AgS4]Trig. 32 : P321
2.GB.Tennantite-(Mn)Cu6(Cu4Mn2)As4S12SIso. 43m : I43m
2.GB.Argentotetrahedrite-(Cd)Ag6(Cu4Cd2)Sb4S12SIso. 43m : I43m
2.GB.Stibiogoldfieldite(Cu4Cu2)(Cu4Cu+2)(Sb2Te2)S12SIso. 43m : I43m
2.GB.Argentotetrahedrite-(Zn)Ag6(Cu4Zn2)Sb4S12SIso. 43m : I43m
2.GB.Tetrahedrite-(Cd)Cu6(Cu4Cd2)Sb4S12SIso. 43m : I43m
2.GB.Arsenogoldfieldite(Cu4Cu2)(Cu4Cu+2)(As2Te2)S12SIso. 43m : I43m
2.GB.Arsenoústalečite(Cu4Cu2)(Cu4Cu+2)(As2Te2)Se12SeIso. 43m : I43m
2.GB.Tennantite-(In)Cu6(Cu5In)As4S13Iso. 43m : I43m
2.GB.Zvěstovite-(Fe)Ag6(Ag4Fe2+2)As4S12SIso. 43m : I43m
2.GB.Hakite-(Fe)Cu6(Cu4Fe2+2)Sb4Se12SeIso. 43m : I43m
2.GB.Tennantite-(Cd)Cu6(Cu4Cd2)As4S12SIso. 43m : I43m
2.GB.XKenorozhdestvenskayaite-(Fe)[Ag6]4+(Ag4Fe2+2)Sb4S12◻Iso. 43m : I43m
2.GB.Tetrahedrite-(Cu)Cu6(Cu4Cu2+2)Sb4S12SIso. 43m : I43m
2.GB.Hakite-(Zn)Cu6(Cu4Zn2)Sb4Se12SeIso. 43m : I43m
2.GB.Zvěstovite-(Zn)Ag6(Ag4Zn2)As4S12SIso.
2.GB.Hakite-(Cd)Cu6(Cu4Cd2)Sb4Se12SeIso. 43m : I43m
2.GB.Kenoargentotennantite-(Fe)[Ag6]4+(Cu4Fe2)As4S12◻Iso. 43m : I43m
2.GB.Tennantite-(Hg)Cu6(Cu4Hg2)As4S12SIso. 43m : I43m
2.GB.Tetrahedrite-(Mn)Cu6(Cu4Mn2)Sb4S12SIso. 43m : I43m
2.GB.Tennantite-(Ni)Cu6(Cu4Ni2)As4S12SIso. 43m : I43m
2.GB.Tetrahedrite-(Ni)Cu6(Cu4Ni2)Sb4S12SIso. 43m : I43m
2.GB.05Hakite-(Hg)Cu6(Cu4Hg2)Sb4Se12SeIso. 43m : I43m
2.GB.05Rozhdestvenskayaite-(Zn)Ag6(Ag4Zn2)Sb4S12SIso. 43m : I43m
2.GB.05Argentotennantite-(Zn)Ag6(Cu4Zn2)As4S12SIso. 43m : I43m
2.GB.05Argentotennantite-(Fe)Ag6(Cu4Fe2)As4S12SIso. 43m : I43m
2.GB.05Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1Iso. 43m : I43m
2.GB.05Tennantite SubgroupCu6(Cu4C2+2)As4S12SIso. 43m : I43m
2.GB.05Tennantite-(Zn)Cu6(Cu4Zn2)As4S12SIso. 43m : I43m
2.GB.05Tetrahedrite-(Zn)Cu6(Cu4Zn2)Sb4S12SIso. 43m : F43m
2.GB.05Tetrahedrite SubgroupCu6(Cu4C2+2)Sb4S12SIso. 43m : I43m
2.GB.05Tennantite-(Fe)Cu6(Cu4Fe2+2)As4S12SIso. 43m : I43m
2.GB.05Tetrahedrite-(Fe)Cu6(Cu4Fe2+2)Sb4S12SIso. 43m : I43m
2.GB.05Tetrahedrite-(Hg)Cu6(Cu4Hg2)Sb4S12SIso. 43m : I43m
2.GB.05Kenoargentotetrahedrite-(Fe)[Ag6]4+(Cu4Fe2+2)Sb4S12◻Iso. 43m : I43m
2.GB.05Giraudite-(Zn)Cu6(Cu4Zn2)As4Se12SeIso. 43m : I43m
2.GB.05Argentotetrahedrite-(Fe)Ag6(Cu4Fe2)Sb4S12SIso. 43m : I43m
2.GB.05Goldfieldite(Cu4◻2)(Cu4Cu+2)Te4S12SIso. 43m : I43m
2.GB.05'UM1992-21-S:AgFeSb'Ag6(Ag4Fe2+2)Sb4S12SIso.
2.GB.10SelenostephaniteAg5SbSe4Orth. 222 : P212121
2.GB.10StephaniteAg5SbS4Orth. mm2 : Cmc21
2.GB.15'UM2003-14-S:AgBiFeTe'Ag16FeBiTe3S8
2.GB.15'UM1979-17-S:BiCuFe'~Cu18Fe4BiS16
2.GB.15Pearceite[Ag6As2S7][Ag9CuS4]Trig. 3m(32/m) : P3m1
2.GB.15ArgentopearceiteAg16As2S11Trig. 32 : P321
2.GB.15Cupropolybasite[Cu6Sb2S7][Ag9CuS4]Trig. 3m : P31m
2.GB.15Fengruiite[Ag6Sb2S7][Ag9CuS2Te2]Trig. 3m(32/m) : P3m1
2.GB.15Auropearceite [Ag9AuS4][Ag6As2S7]Trig. 32 : P321
2.GB.15Selenopolybasite[(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2]Trig. 3m(32/m) : P3m1
2.GB.15Polybasite[Ag6Sb2S7][Ag9CuS4]Mon. 2/m : B2/m
2.GB.15Auropolybasite[Ag9AuS4][Ag6Sb2S7]Trig. 32 : P321
2.GB.15Cupropearceite[Cu6As2S7][Ag9CuS4]Trig. 3m(32/m) : P3m1
2.GB.20Vorontsovite(Hg5Cu)Σ6TlAs4S12Iso. 43m : I43m
2.GB.20Ferrovorontsovite(Fe5Cu)Σ6TlAs4S12Iso. 43m : I43m
2.GB.20Galkhaite(Hg5Cu)CsAs4S12Iso. 43m : I43m

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.

Internet Links for StibioústalečiteHide

References for StibioústalečiteHide

Localities for StibioústalečiteHide

Showing 1 localities.

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.
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Locality ListHide

- 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.
Czech Republic (TL)
 
  • Plzeň Region
    • Klatovy District
      • Nalžovské Hory
        • Ústaleč
Miyawaki et al. (2021) +1 other reference
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