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Schmiederite

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Wilhelm R.O. Schmieder
Formula:
Pb2Cu2(Se6+O4)(Se4+O3)(OH)4
Colour:
Bright blue, greenish blue
Crystal System:
Monoclinic
Name:
Named by Juan A. Olsacher in 1963 in honor of Wilhelm Richard Oscar Schmieder (27 January 1891, Bonn, Germany - 12 February 1980, Schleswig, Germany), German geographer and professor who spent most of his career in Kiel. From 1920 to 1925, he was a professor and director of the Museo de Mineralogia y Geologia, Universidad Nacional, at Cordoba (Olsacher was Argentine). Note that before 1980, the mineral was mistakenly spelled 'schmeiderite'.
Isostructural with:
Linarite-Chenite Group.

The selenate analogue of munakataite.


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Classification of SchmiederiteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1962
7.BC.65

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
C : With medium-sized and large cations
Dana 7th ed.:
33.1.1.1
33.1.1.1

33 : SELENATES AND TELLURATES
1 : (AB)m(XO4)pZq
28.2.2

28 : Selenites, Selenates, Tellurites, and Tellurates
2 : Selenates

Physical Properties of SchmiederiteHide

Colour:
Bright blue, greenish blue

Chemical Properties of SchmiederiteHide

Formula:
Pb2Cu2(Se6+O4)(Se4+O3)(OH)4
IMA Formula:
Cu2Pb2(Se4+O3)(Se6+O4)(OH)4

Crystallography of SchmiederiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 9.92 Å, b = 5.71 Å, c = 9.36 Å
β = 101.86°
Ratio:
a:b:c = 1.737 : 1 : 1.639
Unit Cell V:
518.86 ų (Calculated from Unit Cell)

Type Occurrence of SchmiederiteHide

Other Language Names for SchmiederiteHide

Relationship of Schmiederite to other SpeciesHide

Other Members of this group:
ChenitePb4Cu(SO4)2(OH)6Tric. 1 : P1
LinaritePbCu(SO4)(OH)2Mon. 2/m : P21/m
MunakataitePb2Cu2(Se4+O3)(SO4)(OH)4Mon. 2/m : P21/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Brochantite2 photos of Schmiederite associated with Brochantite on mindat.org.
Covellite2 photos of Schmiederite associated with Covellite on mindat.org.
Quartz1 photo of Schmiederite associated with Quartz on mindat.org.
Favreauite1 photo of Schmiederite associated with Favreauite on mindat.org.
Hemimorphite1 photo of Schmiederite associated with Hemimorphite on mindat.org.
Caledonite1 photo of Schmiederite associated with Caledonite on mindat.org.
Malachite1 photo of Schmiederite associated with Malachite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.BC.05D'AnsiteNa21Mg(SO4)10Cl3Iso.
7.BC.10AluniteKAl3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10Ammonioalunite(NH4)Al3(SO4)2(OH)6Trig.
7.BC.10Ammoniojarosite(NH4)Fe3+3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10ArgentojarositeAgFe3+3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10Beaverite-(Cu)Pb(Fe3+2Cu)(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
7.BC.10DorallchariteTlFe3+3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
7.BC.10HuangiteCa0.5Al3(SO4)2(OH)6Trig.
7.BC.10Hydroniumjarosite(H3O)Fe3+3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
7.BC.10JarositeKFe3+ 3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
7.BC.10Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
7.BC.10NatroaluniteNaAl3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10NatrojarositeNaFe3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10OsarizawaitePb(Al2Cu2+)(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
7.BC.10PlumbojarositePb0.5Fe3+3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
7.BC.10Schlossmacherite(H3O)Al3(SO4)2(OH)6Trig.
7.BC.10WalthieriteBa0.5Al3(SO4)2(OH)6Trig.
7.BC.10Beaverite-(Zn)Pb(Fe3+2Zn)(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
7.BC.15Ye'elimiteCa4Al6(SO4)O12Iso.
7.BC.20AtlasoviteK(BiO)Cu6Fe3+(SO4)5O3ClTet. 4/mmm (4/m 2/m 2/m) : P4/ncc
7.BC.20NabokoiteKCu7(SO4)5(Te4+O3)OClTet.
7.BC.25ChlorothioniteK2Cu(SO4)Cl2Orth. mmm (2/m 2/m 2/m) : Pnma
7.BC.30EuchlorineKNaCu3(SO4)3OMon.
7.BC.30FedotoviteK2Cu3(SO4)3OMon. 2/m : B2/b
7.BC.35KamchatkiteKCu3(SO4)2OClOrth. mmm (2/m 2/m 2/m) : Pnma
7.BC.40PiypiteK4Cu4O2(SO4)4 · (Na,Cu)ClTet.
7.BC.45KlyuchevskiteK3Cu3(Fe3+,Al)(SO4)4O2Mon.
7.BC.45AlumoklyuchevskiteK3Cu3(Al,Fe3+)(SO4)4O2Tric. 1 : P1
7.BC.50CaledonitePb5Cu2(SO4)3(CO3)(OH)6Orth. mm2 : Pmn21
7.BC.55WherryitePb7Cu2(SO4)4(SiO4)2(OH)2Mon. 2/m : B2/m
7.BC.60MammothitePb6Cu4AlSb5+O2(OH)16Cl4(SO4)2Mon. 2 : B2
7.BC.65LinaritePbCu(SO4)(OH)2Mon. 2/m : P21/m
7.BC.65MunakataitePb2Cu2(Se4+O3)(SO4)(OH)4Mon. 2/m : P21/m
7.BC.70ChenitePb4Cu(SO4)2(OH)6Tric. 1 : P1
7.BC.75KrivovichevitePb3Al(OH)6(SO4)(OH)Trig. 3m : R3c
7.BC.80AnhydrokainiteKMg(SO4)Cl

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.2.1OlsacheritePb2(SeO4)(SO4)Orth.

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 SchmiederiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hey, M.H. (1963) Selenites, selenates, tellurites, and tellurates. Schmeiderite. In Appendix to the second edition of an index of mineral species and varieties arranged chemically, Printed by order of the Trustees of the British Museum 84-84.
Cech, F., Mandarino, J.A., Fleischer, M., Hildebrand, F.A. (1964) New mineral names. American Mineralogist: 49: 1497-1502.
Mitchell, R.S. (1980) Schmiederite: comments on the name. Mineralogical Magazine: 43: 824-824 .
International Mineralogical Association (1980) International Mineralogical Association: Commission on new minerals and mineral names. Mineralogical Magazine: 43: 1053-1055.
Effenberger, H. (1987) Crystal structure and chemical formula of schmiederite Pb2Cu2(OH)4(SeO3)(SeO4), with a comparison to linarite, PbCu(OH)2(SO4). Mineralogy and Petrology: 36: 3-12.
Hawthorne, F.C., Burke, E.A.J., Ercit, T.S., Grew, E.S., Grice, J.D., Jambor, J.L., Puziewicz, J., Roberts, A.C., Vanko, D.A. (1988) New mineral names. American Mineralogist: 73: 189-199.

Internet Links for SchmiederiteHide

Localities for SchmiederiteHide

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.
Argentina
 
  • La Rioja
    • General Lamadrid department
      • Villa Castelli
        • Sierra de Cacho
Paar W H, Topa D, Roberts A C, Criddle A J, Amann G, Sureda R J (2002) The new mineral species brodtkorbite, Cu2HgSe2, and the associated selenide assemblage from Tuminico, Sierra de Cacho, La Rioja, Argentina. The Canadian Mineralogist 40, 225-237
    • Vinchina Department
Recursos Minerales de la Republica Argentina, E. O. Zappettini Ed., Buenos Aires 1999 ISSN 0328-2325
Am Min 73 (1988), 199, Especies minerales de la Republica Argentina (2002); Sarp, H. & G.Burri, Schweiz. Mineral.Petrogr. Mitt. 67, 219-223(1987)
Bolivia
 
  • Potosí Department
    • Antonio Quijarro Province
[MinRec 21:133]
Czech Republic
 
  • Moravia (Mähren; Maehren)
    • Olomouc Region
      • Javorník (Jauernig)
Sejkora, J., Pauliš, P., Malec, J.: Supergenní selenová mineralizace na uranovém ložisku Zálesí v Rychlebských horách. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2004, roč. 12, s. 174-179.
Italy
 
  • Sardinia
    • Cagliari Province
      • Villaputzu
Campostrini, I. & Gramaccioli, C. M. (2001): Selenium-rich secondary minerals from the Baccu Locci mine (Sardinia, Italy). Neues Jahrbuch fuer Mineralogie, Abhandlungen 177, 37-59.
    • Sassari Province
      • Ozieri
Olmi F., Sabelli C., Santucci, A., Brizzi, G. (1995): I silicati e i vanadati di Ozieri (SS). Rivista Mineralogica Italiana, 2/1995, 145-160
UK
 
  • England
    • Cornwall
      • Callington District
        • Lezant
Famous British Mineral Localities: Greystone Quarry, Lezant, Cornwall. N Elton, D Green, J Hooper & S Weiss. UK Journal of Mines & Minerals No 24, 2004, pp 9-28
    • Staffordshire
      • Ecton
        • Back of Ecton
S Rust Collection
  • Scotland
    • Dumfries & Galloway
      • Wanlockhead
BMS Database; Green, D. I. (1987): The minerals of Meadowfoot smelter. UK Journal of Mines and Minerals 2, 3-9.
  • Wales
    • Ceredigion
      • Ceulanymaesmawr
        • Talybont
          • Nant-y-Moch Reservoir area
BMS Database
Cardiff Museum
      • Trefeirig
        • Pen-bont Rhydybeddau
S Rust Collection
      • Upper Llanfihangell-y-Creuddyn
        • Pontrhydygroes
S.Rust collection
    • Powys
      • Machynlleth
        • Dylife
No reference listed
USA
 
  • Arizona
    • Maricopa Co.
      • Big Horn Mts
        • Osborn District
          • Tonopah
            • Belmont Mountain
Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 7.
  • California
    • Inyo Co.
      • Inyo Mts (Inyo Range)
        • Russ District
          • Reward
Bulletin of the Mineralogical Society of Southern California; Vol. 75 No. 3, March 2005
Mineral and/or Locality  
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