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A rhombohedral mineral structurally close to the Pyrochlore Group.
Classification of Coulsellite
|IMA status:||Approved 2009|
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Type Occurrence of Coulsellite
|Type Locality:||Mt Cleveland Mine, Luina, Heazlewood district, Tasmania, Australia|
Crystallography of Coulsellite
|Class (H-M):||3m (3 2/m) - Hexagonal Scalenohedral|
|Cell Parameters:||a = 7.1756(1) Å|
α = 59.867(1)°
|Unit Cell Volume:||V 0.00 Å³ (Calculated from Unit Cell)|
Chemical Properties of Coulsellite
|Simplified for copy/paste:||CaNa3AlMg3F14|
|Essential elements:||Al, Ca, F, Mg, Na|
|All elements listed in formula:||Al, Ca, F, Mg, Na|
|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
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
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.
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New Locality Added: Sheppard occurrence, Barrie Township, Frontenac Co., Ontario, CanadaFrom Reiner Mielke, 23rd Oct 2014 00:47:15