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Coulsellite

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Formula:
CaNa
 
3
AlMg
 
3
F
 
14
System:Trigonal


A rhombohedral mineral structurally close to the Pyrochlore Group.

Classification of Coulsellite

IMA status:Approved 2009
mindat.org URL:http://www.mindat.org/min-39766.html
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Type Occurrence of Coulsellite

Type Locality:Mt Cleveland Mine, Luina, Heazlewood district, Tasmania, Australia

Crystallography of Coulsellite

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:R3m {R3 2/m}
Cell Parameters:a = 7.1756(1) Å
α = 59.867(1)°
Unit Cell Volume:V 0.00 ų (Calculated from Unit Cell)

Chemical Properties of Coulsellite

Formula:
CaNa
 
3
AlMg
 
3
F
 
14
Simplified for copy/paste:CaNa3AlMg3F14
Essential elements:Al, Ca, F, Mg, Na
All elements listed in formula:Al, Ca, F, Mg, Na

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 Coulsellite

Reference List:

- +
Grey, I.E., Mumme, W.G., Birch, W.D., Pring, A., Bougerol, C., Wilson, N.C. (2010): Coulsellite, CaNa3AlMg3F14, a rhombohedral pyrochlore with 1:3 ordering in both A and B sites, from the Cleveland Mine, Tasmania, Australia. American Mineralogist, 95, 736-740.

Internet Links for Coulsellite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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  • Localities for Coulsellite

    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.
    Australia
     
    • Tasmania
      • Heazlewood district
        • Luina
    Grey, I.E., Mumme, W.G., Birch, W.D., Pring, A., Bougerol, C., Wilson, N.C. (2010): Coulsellite, CaNa3AlMg3F14, a rhombohedral pyrochlore with 1:3 ordering in both A and B sites, from the Cleveland Mine, Tasmania, Australia. American Mineralogist, 95, 736-740.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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