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Mummeite

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Formula:
Cu0.58Ag3.11Pb1.10Bi6.65S13
Also given as (Cu,Ag)3-4(Bi,Pb)7-8S13
Hardness:
4
Crystal System:
Monoclinic
Name:
Named for the mineralogist and crystallographer W. Gus Mumme (CSIRO, Melbourne, Australia) who first studied the mineral and who worked on sulfosalts.
This page provides mineralogical data about Mummeite.


Hide all sections | Show all sections

Classification of MummeiteHide

Approved
2.JA.05f

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
A : Galena derivatives with little or no Pb
3.8.10.4

3 : SULFOSALTS
8 : 1 < ø < 2

Physical Properties of MummeiteHide

Hardness:

Chemical Properties of MummeiteHide

Formula:
Cu0.58Ag3.11Pb1.10Bi6.65S13

Also given as (Cu,Ag)3-4(Bi,Pb)7-8S13
IMA Formula:
Cu0.58Ag3.11Pb1.10Bi6.65S13

Crystallography of MummeiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 13.47(1) Å, b = 4.06(1) Å, c = 21.63(1) Å
β = 92.9(1)°
Ratio:
a:b:c = 3.318 : 1 : 5.328
Unit Cell V:
1,181.39 ų (Calculated from Unit Cell)
Morphology:
Massive, granular, lath-like.
Comment:
Suggested space groups: C2/m or Cm (Karup-Møller & Makovicky, 1992). "Cuproplumbian mummeite" has a = 13.48(1), b = 4.06(1), c = 21.72(1) A, β = 93.9(1)° (Karup-Møller & Makovicky, 1992). A sample from the Mike mine has: a = 13.41, b = 4.05, c = 21.51 Å, β = 94.5° (Mumme, 1990). Synthetic Ag3.5Bi7.5S13 has space group C2/m, a = 13.3237(2), b = 4.0455(4), c = 21.484(3) Å, β = 92.90 (1)° (Poudeu Poudeu and Ruck, 2005).

Type Occurrence of MummeiteHide

Synonyms of MummeiteHide

Other Language Names for MummeiteHide

German:Mummeit
Simplified Chinese:块硫铋铅银矿
Spanish:Mummeita

Relationship of Mummeite to other SpeciesHide

Other Members of this group:
BenjaminiteAg3Bi7S12Mon. 2/m : B2/m
CupromakopavoniteAg3Cu8Pb4Bi19S38Mon. 2/m : B2/m
CupromakovickyiteCu4AgPb2Bi9S18Mon. 2/m : B2/m
CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5 Mon. 2/m : B2/m
DantopaiteCu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11Mon. 2/m : B2/m
MakovickyiteCu1.12Ag0.81Pb0.27Bi5.35S9Mon. 2/m
PavoniteAgBi3S5Mon. 2/m : B2/m

Related Minerals - Nickel-Strunz GroupingHide

2.JA.05eBenjaminiteAg3Bi7S12Mon. 2/m : B2/m
2.JA.05gBorodaeviteAg5(Bi,Pb,Fe)8(Sb,Bi)2S17Mon.
2.JA.05aCupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5 Mon. 2/m : B2/m
2.JA.05aKitaibeliteAg10PbBi30S51
2.JA.05iLivingstoniteHgSb4S6(S2)Mon. 2/m : B2/b
2.JA.05dMakovickyiteCu1.12Ag0.81Pb0.27Bi5.35S9Mon. 2/m
2.JA.05aPavoniteAgBi3S5Mon. 2/m : B2/m
2.JA.05bGrumipluciteHgBi2S4Mon. 2/m : B2/m
2.JA.05hMozgovaitePbBi4(S,Se)7Orth.
2.JA.05dCupromakovickyiteCu4AgPb2Bi9S18Mon. 2/m : B2/m
2.JA.05cKudriavite(Cd,Pb)Bi2S4Mon. 2/m : B2/m
2.JA.05aCupromakopavoniteAg3Cu8Pb4Bi19S38Mon. 2/m : B2/m
2.JA.05DantopaiteCu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11Mon. 2/m : B2/m
2.JA.10aCuprobismutiteCu8AgBi13S24Mon. 2/m : B2/m
2.JA.10cHodrušiteCu8Bi12S22Mon.
2.JA.10ePadĕraiteCu7[(Cu,Ag)0.33Pb1.33Bi11.33]S22Mon.
2.JA.10dPizgrischite(Cu,Fe)Cu14PbBi17S35Mon. 2/m : B2/m
2.JA.10bKupčíkiteCu3.4Fe0.6Bi5S10Mon. 2/m : B2/m
2.JA.15SchapbachiteAg0.4Pb0.2Bi0.4SIso.
2.JA.15CuboargyriteAgSbS2Iso. m3m (4/m 3 2/m)
2.JA.20BohdanowicziteAgBiSe2Trig. 3m (3 2/m) : P3m1
2.JA.20MatilditeAgBiS2Hex.
2.JA.20VolynskiteAgBiTe2Orth.

Related Minerals - Dana Grouping (8th Ed.)Hide

3.8.10.1PavoniteAgBi3S5Mon. 2/m : B2/m
3.8.10.2MakovickyiteCu1.12Ag0.81Pb0.27Bi5.35S9Mon. 2/m
3.8.10.3BenjaminiteAg3Bi7S12Mon. 2/m : B2/m
3.8.10.5BorodaeviteAg5(Bi,Pb,Fe)8(Sb,Bi)2S17Mon.
3.8.10.6CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5 Mon. 2/m : B2/m
3.8.10.9DantopaiteCu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11Mon. 2/m : B2/m

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.

References for MummeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mumme, W.G. (1990): A note on the occurrence, composition and crystal structures of pavonite homologous series members 4P, 6P, and 8P. Neues Jahrbuch für Mineralogie, Monatshefte 1990, 193-204. (as unnamed 8P member) [Abs. in American Mineralogist 76 (1991) 665-671]
Karup-Møller, S., Makovicky, E. (1992): Mummeite - A new member of the pavonite homologous series from Alaska mine, Colorado. Neues Jahrbuch für Mineralogie, Monatshefte 1992, 555-576. [Abs. in American Mineralogist, 78 (1993), 845-849]
New Minerals (1997), New Minerals 1990-1994.
Poudeu Poudeu, P.F. and Ruck, M. (2005): Ag3.5Bi7.5S13, a new member (N = 8) of the homologous series [Bi2S3]2·[AgBiS2](N−1)/2. Acta Crystallographica C61, i41-i43. [synthetic, Cu-free sample]

Internet Links for MummeiteHide

Localities for MummeiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
Voudouris, P., Melfos, V, Spry, P.G., Bonsall, T.A., Tarkian, M. & Solomon, Ch. (2008): Carbonate-replacement Pb-Zn-Ag+/-Au mineralization in the Kamariza area, Lavrion, Greece: Mineralogy and thermochemical conditions of formation. Mineralogy & Petrology 94, 85-106.
Voudouris, P. & Economou-Eliopoulus, M. (2003): Mineralogy and chemistry of Cu-rich ores from the Kamariza carbonate-hosted deposit (Lavrion), Greece. In: Eliopoulos et al. (Eds.): Mineral Exploration and Sustainable Development. Millpress, Rotterdam, 1039-1042. ; VOUDOURIS, P. (2005): Gold and silver mineralogy of the Lavrion deposit Attika/Greece. In: Mao, J.W. and Bierlein, F.P. (Eds.): Mineral deposit research: Meeting the global challenge. Springer, Berlin, 1089-1092.
Slovakia
 
  • Banská Bystrica Region
Ďuďa R.,Kotuľak P., Káňa R., 1993: Bergbau und Mineralien von Banská Štiavnica (Schemnitz), Slowakei. Emser Hefte, 14, 3, 1-70, Haltern
    • Žarnovica Co.
      • Hodruša-Hámre (Hodritsch)
Jeleň, S., Pršek, J., Kovalenker, V. A., Topa, D., Sejkora, J., Števko, M., & Ozdín, D. (2012). Bismuth Sulfosalts Of The Cuprobismutite, Pavonite And Aikinite Series From The Rozália Mine, Hodruša–Hámre, Slovakia. The Canadian Mineralogist, 50(2), 325-340.
  • Žilina Region
    • Liptovský Mikuláš Co.
In the collection of Brent Thorne. Dealer label by Sonke Stolze.
USA
 
  • Colorado
    • San Juan Co.
Mumme, W.G. (1990): A note on the occurrence, composition and crystal structures of pavonite homologous series members 4P, 6P, and 8P. Neues Jahrbuch für Mineralogie, Monatshefte 1990, 193-204. (as unnamed 8P member; see abs. in American Mineralogist 76 (1991) 665-671; see also American Mineralogist, 78 (1993), 845-849); Minerals of Colorado (1997) E.B. Eckels
      • Poughkeepsie Gulch
        • Alaska Basin
Dana 7:I:446, 476; Dana 6:114, 1091; Neues Jahrb. Mineral. Mon.:555-576 (1992).
      • Red Mountain District
        • Poughkeepsie Gulch
Minerals of Colorado (1997) E.B. Eckels
Mineral and/or Locality  
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