Uchucchacuaite
A valid IMA mineral species
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About Uchucchacuaite
Formula:
AgMnPb3Sb5S12
Colour:
Grey
Lustre:
Metallic
Hardness:
3½
Specific Gravity:
5.51 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
Named after its discovery locality, Uchuc-Chacua polymetallic deposit, Oyon district, Catajambo, Peru.
Type Locality:
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.
An Mn-substituted member of the Andorite series.
Chemically similar to menchettiite, oyonite, and uchucchacuaite. Also compare ramdohrite and 'dürfeldtite'; and luboržákite.
Unique Identifiers
Mindat ID:
4075
Long-form identifier:
mindat:1:1:4075:0
GUID
(UUID V4):
(UUID V4):
e89c9e9b-63d6-4554-9c28-e390b881780a
IMA Classification of Uchucchacuaite
Approved
Approval year:
1981
First published:
1984
Classification of Uchucchacuaite
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
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
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
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 |
---|---|---|
Uch | 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 Uchucchacuaite
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 Uchucchacuaite
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 36.2% | 44.3% |
420nm | 36.3% | 44.2% |
440nm | 35.8% | 44.2% |
460nm | 35.2% | 43.8% |
480nm | 35.0% | 43.9% |
500nm | 34.7% | 43.7% |
520nm | 34.5% | 43.4% |
540nm | 34.1% | 43.3% |
560nm | 33.8% | 43.0% |
580nm | 33.5% | 42.6% |
600nm | 33.2% | 42.4% |
620nm | 33.0% | 42.0% |
640nm | 32.7% | 41.8% |
660nm | 32.3% | 41.2% |
680nm | 31.8% | 40.6% |
700nm | 31.2% | 39.9% |
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 Uchucchacuaite
Mindat Formula:
AgMnPb3Sb5S12
Common Impurities:
Fe,Se
Crystallography of Uchucchacuaite
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 Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0018371 | Uchucchacuaite | Yang 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 1186-1189 | 2011 | Uchuc-Chacua, Lima, Peru | 0 | 293 | |
0018372 | Uchucchacuaite | Yang 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 1186-1189 | 2011 | Inakuraishi mine, Shakotan peninsula, Shiribeshi, Hokkaido Island, Japan | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
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 Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 3b: Earth’s earliest hydrosphere | >4.45 |
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33) |
Type Occurrence of Uchucchacuaite
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 Uchucchacuaite
Other Language Names for Uchucchacuaite
German:Uchucchacuait
Spanish:Uchucchacuaita
Relationship of Uchucchacuaite to other Species
Member of:
Other Members of this group:
Andreadiniite | CuHgAg7Pb7Sb24S48 | Mon. 2/m : P21/b |
Arsenquatrandorite | Ag17.6Pb12.8Sb38.1As11.5S96 | Mon. 2/m : P21/b |
Aschamalmite | Pb6-3xBi2+xS9 | Mon. 2/m : B2/m |
Clino-oscarkempffite | Ag15Pb6Sb21Bi18S72 | Mon. 2/m : P21/b |
Erzwiesite | Ag8Pb12Bi16S40 | Orth. mmm (2/m 2/m 2/m) : Cmcm |
Eskimoite | Ag7Pb10Bi15S36 | Mon. |
Fizélyite | Ag5Pb14Sb21S48 | Mon. 2/m |
Gustavite | AgPbBi3S6 | Orth. mmm (2/m 2/m 2/m) |
Heyrovskýite | Pb6Bi2S9 | Orth. mmm (2/m 2/m 2/m) : Cccm |
Holubite | Ag3Pb6(Sb8Bi3)S24 | Mon. 2/m |
Jasrouxite | Ag16Pb4(Sb24As16)S72 | Tric. 1 : P1 |
Lasmanisite | Ag12Pb13Mn11Sb44S96 | Orth. 2 2 2 : P21 21 21 |
Lillianite | Pb3-2xAgxBi2+xS6 | Orth. mmm (2/m 2/m 2/m) |
Menchettiite | AgPb2.40Mn1.60Sb3As2S12 | Mon. 2/m : P21/b |
Oscarkempffite | Ag10Pb4(Sb17Bi9)S48 | Orth. mm2 |
Ourayite | Ag3Pb4Bi5S13 | Orth. |
Oyonite | Ag3Mn2Pb4Sb7As4S24 | Mon. 2/m |
Quatrandorite | AgPbSb3S6 | Mon. 2/m : P21/b |
Ramdohrite | Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24 | Mon. 2/m |
Roshchinite | Ag19Pb10Sb51S96 | Orth. mmm (2/m 2/m 2/m) : Pnma |
Schirmerite | PbAgBi3S6 - Pb3Ag1.5Bi3.5S9 | Orth. |
Senandorite | AgPbSb3S6 | Orth. mm2 : Pmn21 |
Staročeskéite | Ag0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6 | Orth. mmm (2/m 2/m 2/m) : Cmcm |
Terrywallaceite | AgPb(Sb,Bi)3S6 | Mon. 2/m : P21/b |
Treasurite | Ag7Pb6Bi15S32 | Mon. |
Ustarasite | Pb(Bi,Sb)6S10 (?) | |
Vikingite | Ag5Pb8Bi13S30 | Mon. 2/m : B2/m |
Xilingolite | Pb3Bi2S6 | Mon. |
Common Associates
Associated Minerals Based on Photo Data:
4 photos of Uchucchacuaite associated with Rhodochrosite | MnCO3 |
1 photo of Uchucchacuaite associated with Alabandite | MnS |
Related Minerals - Strunz-mindat Grouping
2.JB. | Senandorite | AgPbSb3S6 |
2.JB. | Oscarkempffite | Ag10Pb4(Sb17Bi9)S48 |
2.JB. | Chukotkaite | AgPb7Sb5S15 |
2.JB. | Arsenquatrandorite | Ag17.6Pb12.8Sb38.1As11.5S96 |
2.JB. | Clino-oscarkempffite | Ag15Pb6Sb21Bi18S72 |
2.JB. | Andreadiniite | CuHgAg7Pb7Sb24S48 |
2.JB. | Ginelfite | Ag2(Ag0.5Fe)TlPb23.5(Sb,As)33.5S76 |
2.JB. | Lazerckerite | Ag3.75Pb4.50(Sb7.75Bi4)S24 |
2.JB. | Lasmanisite | Ag12Pb13Mn11Sb44S96 |
2.JB. | Montpelvouxite | AgPb16Sb27As18S84 |
2.JB. | Selenojunoite | Cu2Pb3Bi8Se16 |
2.JB.05 | Diaphorite | Ag3Pb2Sb3S8 |
2.JB.10 | Cosalite | Pb2Bi2S5 |
2.JB.15 | Freieslebenite | AgPbSbS3 |
2.JB.15 | Marrite | AgPbAsS3 |
2.JB.20 | Cannizzarite | Pb48Bi56S132 |
2.JB.20 | Wittite | Pb9Bi12(S,Se)27 |
2.JB.25a | Junoite | Cu2Pb3Bi8(S,Se)16 |
2.JB.25i | Neyite | Ag2Cu6Pb25Bi26S68 |
2.JB.25c | Nordströmite | CuPb3Bi7(Se4S10) |
2.JB.25g | Nuffieldite | Cu1.4Pb2.4Bi2.4Sb0.2S7 |
2.JB.25d | Proudite | CuPb7.5Bi9.33(S,Se)22 |
2.JB.25h | Weibullite | Pb5Bi8Se7S11 |
2.JB.25b | Felbertalite | Cu2Pb6Bi8S19 |
2.JB.25j | Rouxelite | Cu2HgPb23Sb27S65.5 |
2.JB.25f | Ángelaite | Cu2AgPbBiS4 |
2.JB.25i | Cuproneyite | Cu7Pb27Bi25S68 |
2.JB.30a | Geocronite | Pb14Sb6S23 |
2.JB.30a | Jordanite | Pb14As6S23 |
2.JB.30b | Kirkiite | Pb10Bi3As3S19 |
2.JB.30c | Tsugaruite | Pb28As15S50Cl |
2.JB.30a | Marcobaldiite | Pb12(Sb3As2Bi)Σ6S21 |
2.JB.30a | Arsenmarcobaldiite | Pb12(As3.2Sb2.8)Σ6S21 |
2.JB.35c | Pillaite | Pb9Sb10S23ClO0.5 |
2.JB.35a | Zinkenite | Pb9Sb22S42 |
2.JB.35b | Scainiite | Pb14Sb30S54O5 |
2.JB.35d | Pellouxite | (Cu,Ag)Pb10Sb12S27O(Cl,S)0.6 |
2.JB.35f | Tubulite | Ag2Pb22Sb20S53 |
2.JB.35e | Chovanite | Pb15-2xSb14+2xS36Ox (x ~ 0.2) |
2.JB.40b | Aschamalmite | Pb6-3xBi2+xS9 |
2.JB.40a | Bursaite | Pb5Bi4S11 (?) |
2.JB.40b | Eskimoite | Ag7Pb10Bi15S36 |
2.JB.40a | Fizélyite | Ag5Pb14Sb21S48 |
2.JB.40a | Gustavite | AgPbBi3S6 |
2.JB.40a | Lillianite | Pb3-2xAgxBi2+xS6 |
2.JB.40c | Ourayite | Ag3Pb4Bi5S13 |
2.JB.40a | Ramdohrite | Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24 |
2.JB.40a | Roshchinite | Ag19Pb10Sb51S96 |
2.JB.40d | Schirmerite | PbAgBi3S6 - Pb3Ag1.5Bi3.5S9 |
2.JB.40a | Treasurite | Ag7Pb6Bi15S32 |
2.JB.40e | Ustarasite | Pb(Bi,Sb)6S10 (?) |
2.JB.40a | Vikingite | Ag5Pb8Bi13S30 |
2.JB.40a | Xilingolite | Pb3Bi2S6 |
2.JB.40b | Heyrovskýite | Pb6Bi2S9 |
2.JB.40 | UM1988-05-S:AgBiCuHgPb | (Hg,Ag,Cu,Pb)5Pb5Bi11S27 |
2.JB.40 | UM1988-06-S:AgBiCuHgPb | (Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27 |
2.JB.40a | Quatrandorite | AgPbSb3S6 |
2.JB.40a | Menchettiite | AgPb2.40Mn1.60Sb3As2S12 |
2.JB.40a | Terrywallaceite | AgPb(Sb,Bi)3S6 |
2.JB.40a | Jasrouxite | Ag16Pb4(Sb24As16)S72 |
2.JB.40a | Erzwiesite | Ag8Pb12Bi16S40 |
2.JB.40a | Staročeskéite | Ag0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6 |
2.JB.40a | Oyonite | Ag3Mn2Pb4Sb7As4S24 |
2.JB.40a | Holubite | Ag3Pb6(Sb8Bi3)S24 |
2.JB.40b | Baiamareite | Ag4Pb12Fe4Sb20S48 |
2.JB.55 | Gratonite | Pb9As4S15 |
2.JB.60 | Marrucciite | Hg3Pb16Sb18S46 |
2.JB.65 | Vurroite | Pb20Sn2(Bi,As)22S54Cl6 |
2.JB.65 | Tazieffite | Pb20Cd2(As,Bi)22S50Cl10 |
2.JB.70 | Daliranite | PbHgAs2S5 |
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 Uchucchacuaite
mindat.org URL:
https://www.mindat.org/min-4075.html
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References for Uchucchacuaite
Reference List:
Dunn, Pete J., Ferraiolo, James A., Fleischer, Michael, Gobel, Volker, Grice, Joel D., Langley, Richard H., Shigley, James E., Vanko, David A., Zilczer, Janet A. (1985) New mineral names. American Mineralogist, 70 (11-12) 1329-1335
Localities for Uchucchacuaite
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.
Japan | |
| Josef Vajdak specimens obtained from ... |
| Komuro collection |
Peru | |
| McKeon (2019) |
| Moëlo et al. (1984) +1 other reference |
Romania | |
| Mârza +5 other references |
Russia | |
| Kasatkin et al. (2020) |
| A. A. Kalinin et al. (2016) +1 other reference |
USA | |
| Mike Scott S106057 fm Cureton #GFG ID ... |
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Uchucchacua Mine, Oyón District, Oyón Province, Lima, Peru