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Schmiederite

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Formula:
Pb
 
2
Cu
 
2
(Se
6+
 
O
 
4
)(Se
4+
 
O
 
3
)(OH)
 
4
System:MonoclinicColour:Bright blue, greenish ...
Member of:Linarite-Chenite Group
Name:For German geographer Oscar Schmieder (1891-1980).
Isostructural with:Munakataite


Linarite-Chenite Group.

The selenate analogue of munakataite.

Classification of Schmiederite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered" 1962
Strunz 8th edition ID:6/B.10-20
Nickel-Strunz 10th (pending) edition ID: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 edition ID:33.1.1.1
Dana 8th edition ID:33.1.1.1

33 : SELENATES AND TELLURATES
1 : (AB)m(XO4)pZq
Hey's CIM Ref.:28.2.2

28 : Selenites, Selenates, Tellurites, and Tellurates
2 : Selenates
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Type Occurrence of Schmiederite

Type Locality:El Cóndor Mine, Los Llantenes district, Vinchina Department, La Rioja, Argentina
Year of Discovery:1962

Physical Properties of Schmiederite

Colour:Bright blue, greenish blue

Crystallography of Schmiederite

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

Chemical Properties of Schmiederite

Formula:
Pb
 
2
Cu
 
2
(Se
6+
 
O
 
4
)(Se
4+
 
O
 
3
)(OH)
 
4
Simplified for copy/paste:Pb2Cu2(Se6+O4)(Se4+O3)(OH)4
Essential elements:Cu, H, O, Pb, Se
All elements listed in formula:Cu, H, O, Pb, Se

Relationship of Schmiederite to other Species

Member of:Linarite-Chenite Group
Other Members of Group:

- +
Chenite
Pb
 
4
Cu(SO
 
4
)
 
2
(OH)
 
6
Linarite
PbCu(SO
 
4
)(OH)
 
2
Munakataite
Pb
 
2
Cu
 
2
(Se
4+
 
O
 
3
)(SO
 
4
)(OH)
 
4
Related Minerals - Nickel-Strunz Grouping):

- +
7.BC.05D'Ansite
Na
 
21
Mg(SO
 
4
)
 
10
Cl
 
3
7.BC.10Alunite
KAl
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Ammonioalunite
(NH
 
4
)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Ammoniojarosite
(NH
 
4
)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Argentojarosite
AgFe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Beaverite-(Cu)
Pb(Fe
3+
 
,Cu)
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Dorallcharite
(Tl,K)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Huangite
Ca
 
0.5
Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Hydroniumjarosite
(H
 
3
O)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Jarosite
KFe
3+
 
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Natroalunite-2c
(Na,Ca
 
0.5
,K)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Natroalunite
(Na,K)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Natrojarosite
NaFe
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Osarizawaite
Pb(Al,Cu)
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Plumbojarosite
Pb
 
0.5
Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Schlossmacherite
(H
 
3
O)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Walthierite
Ba
 
0.5
Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Beaverite-(Zn)
Pb(Fe
3+
2
Zn)(SO
 
4
)
 
2
(OH)
 
6
7.BC.15Ye'elimite
Ca
 
4
Al
 
6
(SO
 
4
)O
 
12
7.BC.20Atlasovite
K(BiO)Cu
 
6
Fe
3+
 
(SO
 
4
)
 
5
O
 
3
Cl
7.BC.20Nabokoite
KCu
 
7
(SO
 
4
)
 
5
(Te
4+
 
O
 
3
)OCl
7.BC.25Chlorothionite
K
 
2
Cu(SO
 
4
)Cl
 
2
7.BC.30Euchlorine
KNaCu
 
3
(SO
 
4
)
 
3
O
7.BC.30Fedotovite
K
 
2
Cu
 
3
(SO
 
4
)
 
3
O
7.BC.35Kamchatkite
KCu
 
3
(SO
 
4
)
 
2
OCl
7.BC.40Piypite
K
 
2
Cu
 
2
(SO
 
4
)
 
2
O
7.BC.45Klyuchevskite
K
 
3
Cu
 
3
(Fe
3+
 
,Al)(SO
 
4
)
 
4
O
 
2
7.BC.45Alumoklyuchevskite
K
 
3
Cu
 
3
(Al,Fe
3+
 
)(SO
 
4
)
 
4
O
 
2
7.BC.50Caledonite
Pb
 
5
Cu
 
2
(SO
 
4
)
 
3
(CO
 
3
)(OH)
 
6
7.BC.55Wherryite
Pb
 
7
Cu
 
2
(SO
 
4
)
 
4
(SiO
 
4
)
 
2
(OH)
 
2
7.BC.60Mammothite
Pb
 
6
Cu
 
4
AlSb
5+
 
O
 
2
(OH)
 
16
Cl
 
4
(SO
 
4
)
 
2
7.BC.65Linarite
PbCu(SO
 
4
)(OH)
 
2
7.BC.65Munakataite
Pb
 
2
Cu
 
2
(Se
4+
 
O
 
3
)(SO
 
4
)(OH)
 
4
7.BC.70Chenite
Pb
 
4
Cu(SO
 
4
)
 
2
(OH)
 
6
7.BC.75Krivovichevite
Pb
 
3
Al(SO
 
4
)(OH)
 
7
7.BC.80Anhydrokainite
KMg(SO
 
4
)Cl
Related Minerals - Hey's Index Grouping:

- +
28.2.1Olsacherite
Pb
 
2
(SeO
 
4
)(SO
 
4
)

Other Names for Schmiederite

Other Languages:
German:Schmiederit
Russian:Шмайдерит
Spanish:Schmiederita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Schmiederite

Reference List:

- +
American Mineralogist (1964): 49: 1498.

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.

American Mineralogist (1999): 84: 922-928.

Mineralogy and Petrology: 75: 69-78.

Internet Links for Schmiederite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Schmiederite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Specimens:The following Schmiederite specimens are currently listed for sale on minfind.com.
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  • Localities for Schmiederite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Argentina
     
    • La Rioja
      • Sierra de Cacho
      • 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 (Dumfriesshire)
        • Wanlockhead
    BMS Database; Green, D. I. (1987): The minerals of Meadowfoot smelter. UK Journal of Mines and Minerals 2, 3-9.
    • Wales
      • Ceredigion (Dyfed; Cardiganshire)
        • 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 (Montgomeryshire)
        • 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)
          • Manzanar Station area
    Bulletin of the Mineralogical Society of Southern California; Vol. 75 No. 3, March 2005
    Mineral and/or Locality  
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