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Schmiederite

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Frongoch Mine (Bron-y-Goch Mine; Llawynwnwch Mine), Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion (Dyfed; Cardiganshire), Wales, UK
© Steve Rust

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Formula:
Pb
 
2
Cu
 
2
[(OH)
 
4
|SeO
 
3
|SeO
 
4
]
System:MonoclinicColour:Bright blue, greenish ...
Name:For German geographer Oscar Schmieder (1891-1980)


Linarite-Chenite Group.

See also the closely related 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:Condor Mine, Los Llantenes District, 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
[(OH)
 
4
|SeO
 
3
|SeO
 
4
]
Essential elements:Cu, H, O, Pb, Se
All elements listed in formula:Cu, H, O, Pb, Se

Relationship of Schmiederite to other Species

Related to:
  • Linarite-Chenite Group
    • Related Minerals - Nickel-Strunz Grouping):
    7.BC.05D'Ansite
    Na
     
    21
    		Mg(SO
     
    4
    		)
     
    10
    		Cl
     
    3
    7.BC.10Alunite
    KAl
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Ammonioalunite
    (NH
     
    4
    		)Al
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Ammoniojarosite
    (NH
     
    4
    		)Fe
    3+
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Argentojarosite
    AgFe
    3+
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Beaverite
    Pb(Fe
    3+
     
    		,Cu,Al)
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Dorallcharite
    (Tl,K)Fe
    3+
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Huangite
    CaAl
     
    6
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    4
    7.BC.10Hydroniumjarosite
    (H
     
    3
    		O)Fe
    3+
    3
    		(SO
     
    4
    		)
     
    2
    		(OH)
     
    6
    7.BC.10Jarosite
    KFe
    3+
     
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Minamiite
    (Na,Ca
     
    0.5
    		,K)Al
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Natroalunite
    (Na,K)Al
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Natrojarosite
    NaFe
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Osarizawaite
    Pb(Al,Cu)
     
    3
    		[(OH,H
     
    2
    		O)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.10Plumbojarosite
    PbFe
    3+
    6
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    4
    7.BC.10Walthierite
    BaAl
     
    6
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    4
    7.BC.15Ye'elimite
    Ca
     
    4
    		Al
     
    6
    		[O
     
    12
    		|SO
     
    4
    		]
    7.BC.20Atlasovite
    K(BiO)Cu
     
    6
    		Fe
    3+
     
    		[Cl|O
     
    3
    		|(SO
     
    4
    		)
     
    5
    		]
    7.BC.20Nabokoite
    KCu
     
    7
    		Te
    4+
     
    		[Cl|O
     
    4
    		|(SO
     
    4
    		)
     
    5
    		]
    7.BC.25Chlorothionite
    K
     
    2
    		Cu[Cl
     
    2
    		|SO
     
    4
    		]
    7.BC.30Euchlorine
    KNaCu
     
    3
    		[O|(SO
     
    4
    		)
     
    3
    		]
    7.BC.30Fedotovite
    K
     
    2
    		Cu
     
    3
    		[O|(SO
     
    4
    		)
     
    3
    		]
    7.BC.35Kamchatkite
    KCu
     
    3
    		[O|Cl|(SO
     
    4
    		)
     
    2
    		]
    7.BC.40Piypite
    K
     
    2
    		Cu
     
    2
    		[O|(SO
     
    4
    		)
     
    2
    		]
    7.BC.45Klyuchevskite
    K
     
    3
    		Cu
     
    3
    		(Fe
    3+
     
    		,Al)[O|(SO
     
    4
    		)
     
    2
    		]
     
    2
    7.BC.45Alumoklyuchevskite
    K
     
    3
    		Cu
     
    3
    		(Al,Fe
    3+
     
    		)[O|(SO
     
    4
    		)
     
    2
    		]
     
    2
    7.BC.50Caledonite
    Cu
     
    2
    		Pb
     
    5
    		[(OH)
     
    6
    		|CO
     
    3
    		|(SO
     
    4
    		)
     
    3
    		]
    7.BC.55Wherryite
    Pb
     
    4
    		CuCO
     
    3
    		(SO
     
    4
    		)
     
    2
    		(Cl,OH)
     
    2
    		O
    7.BC.60Mammothite
    Pb
     
    6
    		Cu
     
    4
    		AlSb[(OH)
     
    9
    		|Cl
     
    2
    		|SO
     
    4
    		]
     
    2
    7.BC.65Linarite
    PbCu[(OH)
     
    2
    		|SO
     
    4
    		]
    7.BC.65Munakataite
    Pb
     
    2
    		Cu
     
    2
    		(Se
    4+
     
    		O
     
    3
    		)(SO
     
    4
    		)(OH)
     
    4
    7.BC.70Chenite
    Pb
     
    4
    		Cu[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    7.BC.75Krivovichevite
    Pb
     
    3
    		[Al(OH)
     
    6
    		](SO
     
    4
    		)(OH)
    7.BC.80Anhydrokainite
    KMgClSO
     
    4
    Related Minerals - Hey's Index Grouping:
    28.2.1Olsacherite
    Pb
     
    2
    		SO
     
    4
    		SeO
     
    4

    Other Names for Schmiederite

    German names:
    Schmiederit
    Russian names:
    Шмайдерит
    Spanish names:
    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

    Search Engines:
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    • External Links:
  • Look for Schmiederite on Webmineral
  • Look for Schmiederite on Athena Mineralogy
  • Look for Schmiederite on Wikipedia
  • Look for Schmiederite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Schmiederite in the Natural History Museum (London) online catalogue
  • Schmiederite details from Handbook of Mineralogy (PDF)
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  • Find Schmiederite on www.crystalclassics.co.uk
  • Rare and Unusual minerals at Mineralogical Research Company
  • Fabre Minerals - search for Schmiederite specimens
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    Localities for Schmiederite

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    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.
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    (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
    		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)
      • Sierra de Umango
        • Sierra de Cacho
    Bolivia
     
    • Potosí Department
      • Quijarro Province
    		[MinRec 21:133]
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Javorník
    		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 (Dumfries-shire) and Strathclyde (Lanarkshire)
        • Leadhills-Wanlockhead District
          • Wanlockhead
    		BMS Database
    • 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.
    		Bulletin of the Mineralogical Society of Southern California; Vol. 75 No. 3, March 2005
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.