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Polymignite

Big Photo

In den Dellen quarries, Niedermendig, Mendig, Laach lake volcanic complex, Eifel Mts, Rhineland-Palatinate, Germany
© Fred Kruijen

Show Polymignite Photos (2)
Formula:
(Ca,Fe,Y,Th)(Nb,Ti,Ta,Zr)O
 
4
System:Orthorhombic
A variety of Zirconolite

Described as a new mineral by Berzelius (1824) from Stavern, Vestfold, Norway. Later shown to be identical with Zirconolite described in 1956. In spite of its priority and widely use in the literature polymignite is now considered a metamict variety of zirconolite.

Classification of Polymignite

IMA status:Discredited 1989
Explanation of status:Metamict zirconolite.
Strunz 8th edition ID:4/X.0-0

4 : Oxides & Hydroxides
X : Unclassified oxides
0 :
Dana 7th edition ID:4.0.0.0
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Crystallography of Polymignite

Crystal System:Orthorhombic

Chemical Properties of Polymignite

Formula:
(Ca,Fe,Y,Th)(Nb,Ti,Ta,Zr)O
 
4
Essential elements:Ca, Nb, O
All elements listed in formula:Ca, Fe, Nb, O, Ta, Th, Ti, Y, Zr

Relationship of Polymignite to other Species

Related Minerals - Strunz Grouping):

- +
4/X.0-0Murataite-(Y)
(Y,Na)
 
6
Zn(Zn,Fe
3+
 
)
 
4
(Ti,Nb,Na)
 
12
O
 
29
(O,F,OH)
 
10
F
 
4
4/X.0-0Psilomelane
Related Minerals - Dana Grouping):

- +
4.0.0.0Bechererite
(Zn,Cu)
 
6
Zn
 
2
[(OH)
 
12
|(SO
 
4
,HSiO
 
4
)
 
2
]

Other Names for Polymignite

Synonyms:
MelanerzPolymigmitePolymignyte
Other Languages:
German:Polymigmit
Polymignit
Spanish:Polymigmita
Polymignita

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 Polymignite

Reference List:Mazzi, F. and Munno, R. (1983) Calciobetafite (new mineral of the pyrochlore group) and related minerals from Campi Flegrei, Italy; crystal structures of polymignite, and zirkelite: comparison with pyrochlore and zirconolite. American Mineralogist: 68: 262-276.

Internet Links for Polymignite

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    Localities for Polymignite

    Hide Locality List
    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.
    Norway
     
    • Telemark
      • Porsgrunn
        • Langangen
          • Kokkersvold - Blåfjell
    		Larsen, A.O. & Åsheim,A.(1976):"Mineraler fra Langangen".NAGS-nytt 3(1),9-12. (in norwegian)
          • Rønningen (Skredderrønningen)
    		Burvald, Ingulv (1993): To forekomster av nefelin-syenitt-pegmatitt i Telemark. STEIN 20 (3), 176-179
    • Vestfold
      • Larvik
        • Hedrum
          • Lågendalen
    		Andersen, F. (1993): Hedrum pukkverk i Lågendalen. STEIN 20 (4), 236-238
    Berzelius (1824); Neumann (1985, p. 82).
    A.O. Larsen (1978, pers. com.); Neumann (1985, p. 82).[MinRec 23:435]
    Brøgger (1890, p. 395); Neumann (1985, p. 82).
        • Tjølling
          • Håkestad
    		Hansen, R.(1981). Mineralnotater. NAGS-nytt 8(4),18
          • Klåstad
    		J. Hysigjord (1978, letter); Neumann (1985, p. 82).
          • Stålaker
    		Hansen,R.(1981)."Mineralnotater". NAGS-nytt 8(4),18 (in norwegian)
        • Vardaasen
    		Collection of Peter Andresen.
      • Re
        • Ramnes
    		Andersen, F. & Berge, S. A. (1994): Himberg pukkverk, Ramnes, Vestfold. STEIN 21 (2), 96-102
      • Sandefjord
        • Fokserød
    		Berge, S.A. & Larsen,A.O.(1980): Mineraler fra Sandefjordsområdet-IV.Granater".NAGS-nytt 7(2),21-24. (in norwegian)
    Berge, S.A. & Larsen,A.O.(1980): Mineraler fra Sandefjordsområdet-IV.Granater".NAGS-nytt 7(2),21-24. (in norwegian)
    Berge, S. A. & Hansen, R. (1975): Mineraler fra Sandefjord. NAGS-nytt nr 1, 10-12 (in norwegian)
        • Østerøya
    		Berge, S. A. & Andersen, F. (2002): Mineralforekomster i Sandefjordområdet. Bergverksmuseets Skrift 20, 50-59
        • Vesterøya
    		Berge, S. A. & Larsen, A.O.(1980): Mineraler fra Sandefjordsområdet-IV.Granater. NAGS-nytt 7 (2),21-24. (in norwegian)
    Berge, S.A. & Hansen, R. (1976): Mineraler i Sandefjordsområdet III-Varden. NAGS-nytt 3 (4), 13-16 (in norwegian)
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		www.koeln.netsurf.de/~w.steffens/khib.htm
    USA
     
    • Massachusetts
      • Essex Co.
    		Gleba, 1978. Massachusetts Mineral & Fossil Localities
    Januzzi, R.E. and Seaman, David M. (1976) Mineral Localities Of Connecticut and Southern New York State and Pegmatite Minerals of the World.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. Current server date and time: 31st Oct 2009 09:06:35