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Uchucchacuaite

A valid IMA mineral species
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About UchucchacuaiteHide

Formula:
AgMnPb3Sb5S12
Colour:
Grey
Lustre:
Metallic
Hardness:
Specific Gravity:
5.51 (Calculated)
Crystal System:
Orthorhombic
Name:
Named after its discovery locality, Uchuc-Chacua polymetallic deposit, Oyon district, Catajambo, Peru.
The Mn analogue of baiamareite.

An Mn-substituted member of the Andorite series.

Chemically similar to menchettiite, oyonite, and uchucchacuaite. Also compare ramdohrite and 'dürfeldtite'; and luboržákite.


Unique IdentifiersHide

Mindat ID:
4075
Long-form identifier:
mindat:1:1:4075:0
GUID
(UUID V4):
e89c9e9b-63d6-4554-9c28-e390b881780a

IMA Classification of UchucchacuaiteHide

Classification of UchucchacuaiteHide

2.JB.40a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
3.4.15.5

3 : SULFOSALTS
4 : ø = 3
5.8.2

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 SymbolsHide

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

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

Physical Properties of UchucchacuaiteHide

Metallic
Transparency:
Opaque
Colour:
Grey
Hardness:
3½ on Mohs scale
Hardness:
VHN100=168 kg/mm2 - Vickers
Density:
5.51 g/cm3 (Calculated)

Optical Data of UchucchacuaiteHide

Reflectivity:
WavelengthR1R2
400nm36.2%44.3%
420nm36.3%44.2%
440nm35.8%44.2%
460nm35.2%43.8%
480nm35.0%43.9%
500nm34.7%43.7%
520nm34.5%43.4%
540nm34.1%43.3%
560nm33.8%43.0%
580nm33.5%42.6%
600nm33.2%42.4%
620nm33.0%42.0%
640nm32.7%41.8%
660nm32.3%41.2%
680nm31.8%40.6%
700nm31.2%39.9%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 44.3%.
R1 shown in black, R2 shown in red

Chemistry of UchucchacuaiteHide

Mindat Formula:
AgMnPb3Sb5S12
Common Impurities:
Fe,Se

Crystallography of UchucchacuaiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pmmm
Cell Parameters:
a = 12.67 Å, b = 19.32 Å, c = 4.38 Å
Ratio:
a:b:c = 0.656 : 1 : 0.227
Unit Cell V:
1072.16 ų
Z:
2
Twinning:
Polysynthetic twinning along one direction.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0018371UchucchacuaiteYang H, Downs R T, Evans S H, Feinglos M N, Tait K T (2011) Crystal structure of uchucchacuaite, AgMnPb3Sb5S12, and its relationship with ramdohrite and fizelyite American Mineralogist 96 1186-11892011Uchuc-Chacua, Lima, Peru0293
0018372UchucchacuaiteYang H, Downs R T, Evans S H, Feinglos M N, Tait K T (2011) Crystal structure of uchucchacuaite, AgMnPb3Sb5S12, and its relationship with ramdohrite and fizelyite American Mineralogist 96 1186-11892011Inakuraishi mine, Shakotan peninsula, Shiribeshi, Hokkaido Island, Japan0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.30 Å(100)
2.90 Å(80)
3.80 Å(30)
3.49 Å(30)
2.75 Å(30)
2.08 Å(30)
2.29 Å(10)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere>4.45
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)

Type Occurrence of UchucchacuaiteHide

General Appearance of Type Material:
Anhedral grains and subhedral crystals to 200 µm.
Place of Conservation of Type Material:
National School of Mines, Paris, France.
Reference:
Moëlo, Y., Oudin, E., Picot, P., Caye, R. (1984) L'uchucchacuaïte, AgMnPb3Sb5S12, une nouvelle espèce minérale de la série de l'andorite. Bulletin de la Société française de Minéralogie et de Cristallographie: 107: 597-604.

Synonyms of UchucchacuaiteHide

Other Language Names for UchucchacuaiteHide

Relationship of Uchucchacuaite to other SpeciesHide

Other Members of this group:
AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
AschamalmitePb6-3xBi2+xS9Mon. 2/m : B2/m
Clino-oscarkempffiteAg15Pb6Sb21Bi18S72Mon. 2/m : P21/b
ErzwiesiteAg8Pb12Bi16S40Orth. mmm (2/m 2/m 2/m) : Cmcm
EskimoiteAg7Pb10Bi15S36Mon.
FizélyiteAg5Pb14Sb21S48 Mon. 2/m
GustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/m)
HeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
HolubiteAg3Pb6(Sb8Bi3)S24Mon. 2/m
JasrouxiteAg16Pb4(Sb24As16)S72Tric. 1 : P1
LasmanisiteAg12Pb13Mn11Sb44S96Orth. 2 2 2 : P21 21 21
LillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
MenchettiiteAgPb2.40Mn1.60Sb3As2S12Mon. 2/m : P21/b
OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
OurayiteAg3Pb4Bi5S13Orth.
OyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
QuatrandoriteAgPbSb3S6Mon. 2/m : P21/b
RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24Mon. 2/m
RoshchiniteAg19Pb10Sb51S96Orth. mmm (2/m 2/m 2/m) : Pnma
SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
SenandoriteAgPbSb3S6Orth. mm2 : Pmn21
StaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm (2/m 2/m 2/m) : Cmcm
TerrywallaceiteAgPb(Sb,Bi)3S6 Mon. 2/m : P21/b
TreasuriteAg7Pb6Bi15S32Mon.
UstarasitePb(Bi,Sb)6S10 (?)
VikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
XilingolitePb3Bi2S6Mon.

Common AssociatesHide

Associated Minerals Based on Photo Data:
4 photos of Uchucchacuaite associated with RhodochrositeMnCO3
1 photo of Uchucchacuaite associated with AlabanditeMnS

Related Minerals - Strunz-mindat GroupingHide

2.JB.SenandoriteAgPbSb3S6Orth. mm2 : Pmn21
2.JB.OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
2.JB.ChukotkaiteAgPb7Sb5S15Mon. 2/m : P21/b
2.JB.ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
2.JB.Clino-oscarkempffiteAg15Pb6Sb21Bi18S72Mon. 2/m : P21/b
2.JB.AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
2.JB.GinelfiteAg2(Ag0.5Fe)TlPb23.5(Sb,As)33.5S76Tric. 1 : P1
2.JB.LazerckeriteAg3.75Pb4.50(Sb7.75Bi4)S24Mon. 2/m
2.JB.LasmanisiteAg12Pb13Mn11Sb44S96Orth. 2 2 2 : P21 21 21
2.JB.MontpelvouxiteAgPb16Sb27As18S84Tric. 1 : P1
2.JB.SelenojunoiteCu2Pb3Bi8Se16Mon. 2/m : B2/m
2.JB.05DiaphoriteAg3Pb2Sb3S8Mon. 2/m : P21/b
2.JB.10CosalitePb2Bi2S5Orth. mmm (2/m 2/m 2/m)
2.JB.15FreieslebeniteAgPbSbS3Mon. 2/m : P21/b
2.JB.15MarriteAgPbAsS3Mon. 2/m : P21/b
2.JB.20CannizzaritePb48Bi56S132Mon. 2/m : P21/m
2.JB.20WittitePb9Bi12(S,Se)27Mon.
2.JB.25aJunoiteCu2Pb3Bi8(S,Se)16Mon. 2/m : B2/m
2.JB.25iNeyiteAg2Cu6Pb25Bi26S68Mon. 2/m : B2/m
2.JB.25cNordströmiteCuPb3Bi7(Se4S10)Mon. 2/m : P21/m
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7Orth. mmm (2/m 2/m 2/m)
2.JB.25dProuditeCuPb7.5Bi9.33(S,Se)22Mon. 2/m : B2/m
2.JB.25hWeibullitePb5Bi8Se7S11Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25bFelbertaliteCu2Pb6Bi8S19Mon. 2/m : B2/m
2.JB.25jRouxeliteCu2HgPb23Sb27S65.5Mon. 2/m : B2/m
2.JB.25fÁngelaiteCu2AgPbBiS4Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25iCuproneyiteCu7Pb27Bi25S68Mon. 2/m : B2/m
2.JB.30aGeocronitePb14Sb6S23Mon. 2/m : P21/m
2.JB.30aJordanitePb14As6S23Mon. 2/m : P21/m
2.JB.30bKirkiitePb10Bi3As3S19Mon. 2/m : P21/m
2.JB.30cTsugaruitePb28As15S50ClOrth. mm2 : Pnn2
2.JB.30aMarcobaldiitePb12(Sb3As2Bi)Σ6S21Tric. 1 : P1
2.JB.30aArsenmarcobaldiitePb12(As3.2Sb2.8)Σ6S21Tric. 1 : P1
2.JB.35cPillaitePb9Sb10S23ClO0.5Mon. 2/m : B2/m
2.JB.35aZinkenitePb9Sb22S42Hex. 6 : P63
2.JB.35bScainiitePb14Sb30S54O5Mon. 2/m : B2/m
2.JB.35dPellouxite(Cu,Ag)Pb10Sb12S27O(Cl,S)0.6Mon. 2/m : B2/m
2.JB.35fTubuliteAg2Pb22Sb20S53 Mon. m : Pb
2.JB.35eChovanitePb15-2xSb14+2xS36Ox (x ~ 0.2)Mon. 2/m : B2/m
2.JB.40bAschamalmitePb6-3xBi2+xS9Mon. 2/m : B2/m
2.JB.40aBursaitePb5Bi4S11 (?)Orth.
2.JB.40bEskimoiteAg7Pb10Bi15S36Mon.
2.JB.40aFizélyiteAg5Pb14Sb21S48 Mon. 2/m
2.JB.40aGustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/m)
2.JB.40aLillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
2.JB.40cOurayiteAg3Pb4Bi5S13Orth.
2.JB.40aRamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24Mon. 2/m
2.JB.40aRoshchiniteAg19Pb10Sb51S96Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.40dSchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
2.JB.40aTreasuriteAg7Pb6Bi15S32Mon.
2.JB.40eUstarasitePb(Bi,Sb)6S10 (?)
2.JB.40aVikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
2.JB.40aXilingolitePb3Bi2S6Mon.
2.JB.40bHeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
2.JB.40UM1988-05-S:AgBiCuHgPb(Hg,Ag,Cu,Pb)5Pb5Bi11S27
2.JB.40UM1988-06-S:AgBiCuHgPb(Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27
2.JB.40aQuatrandoriteAgPbSb3S6Mon. 2/m : P21/b
2.JB.40aMenchettiiteAgPb2.40Mn1.60Sb3As2S12Mon. 2/m : P21/b
2.JB.40aTerrywallaceiteAgPb(Sb,Bi)3S6 Mon. 2/m : P21/b
2.JB.40aJasrouxiteAg16Pb4(Sb24As16)S72Tric. 1 : P1
2.JB.40aErzwiesiteAg8Pb12Bi16S40Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40aStaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40aOyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
2.JB.40aHolubiteAg3Pb6(Sb8Bi3)S24Mon. 2/m
2.JB.40bBaiamareiteAg4Pb12Fe4Sb20S48Mon. 2/m
2.JB.55GratonitePb9As4S15Trig. 3m : R3m
2.JB.60MarrucciiteHg3Pb16Sb18S46Mon. 2/m : B2/m
2.JB.65VurroitePb20Sn2(Bi,As)22S54Cl6Mon. 2/m : B2/b
2.JB.65TazieffitePb20Cd2(As,Bi)22S50Cl10Mon. 2/m : B2/b
2.JB.70DaliranitePbHgAs2S5Mon.

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 UchucchacuaiteHide

References for UchucchacuaiteHide

Localities for UchucchacuaiteHide

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.

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.
Japan
 
  • Hokkaidō Prefecture
    • Shiribeshi Subprefecture
      • Abuta District
        • Takarada
Josef Vajdak specimens obtained from ...
      • Furubira District
Komuro collection
Peru
 
  • Lima
    • Huarochirí Province
      • Antioquia District
McKeon (2019)
    • Oyón Province
      • Oyón District
Moëlo et al. (1984) +1 other reference
Romania
 
  • Maramureș County
    • Baia Mare
Mârza +5 other references
Russia
 
  • Chukotka Autonomous Okrug
    • Iultinsky District
      • Amguema river basin
Kasatkin et al. (2020)
  • Murmansk Oblast
    • Voron'i Tundry
A. A. Kalinin et al. (2016) +1 other reference
USA
 
  • Washington
    • King County
      • Buena Vista Mining District
Mike Scott S106057 fm Cureton #GFG ID ...
 
Mineral and/or Locality  
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