Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Coulsellite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
CaNa3AlMg3F14
System:
Trigonal
Name:
For Ruth Elise Coulsell (1912–2000), a foundation member and honorary life member of the Mineralogical Society of Victoria.
A rhombohedral mineral structurally close to the Pyrochlore Group.
Appears to be unique among published pyrochlore phases in having a 1:3 ordering of metal atoms Ca:Na in the A sites and Al:Mg in the B sites.

Classification of Coulsellite

Approved
Approval Year:
2009
3.00.

3 : HALIDES
0 :
0 :
mindat.org URL:
http://www.mindat.org/min-39766.html
Please feel free to link to this page.

Type Occurrence of Coulsellite

Physical Properties of Coulsellite

Density:
3.011 g/cm3 (Calculated)

Crystallography of Coulsellite

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Space Group Setting:
R3m
Cell Parameters:
a = 7.1756(1) Å
α = 59.867(1)°
Unit Cell Volume:
V 260.46 ų (Calculated from Unit Cell)
Z:
1
Twinning:
multiply twinned about threefold axes of the pseudocubic cell.
Comment:
corresponding hexagonal cell parameters are a = 7.1620(1) Å, c = 17.5972(3) Å.

Chemical Properties of Coulsellite

Formula:
CaNa3AlMg3F14
All elements listed in formula:

Relationship of Coulsellite to other Species

Other Information

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 Coulsellite

Reference List:
Birch W D, Grey I E, Mumme W G, Pring A (2009) Coulsellite, a new mineral from the Cleveland mine, Luina, Tasmania. Australian Journal of Mineralogy 15, 21-24

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

Localities for Coulsellite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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 (TL)
 
  • 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.
Italy
 
  • Campania
    • Naples Province
      • Somma-Vesuvius Complex
Demartin, F., Campostrini, I., Castellano, C., & Russo, M. (2014). Parascandolaite, KMgF3, a new perovskite-type fluoride from Vesuvius. Physics and chemistry of minerals, 41(6), 403-407.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2016, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 24, 2016 02:03:32 Page generated: June 16, 2016 19:25:26
Go to top of page