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Classification of Trilithionite
|Strunz 8th edition ID:||8/H.11-50|
|Nickel-Strunz 10th (pending) edition ID:||9.EC.20|
9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
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Physical Properties of Trilithionite
Crystallography of Trilithionite
|Class (H-M):||2/m - Prismatic|
|Space Group Setting:||C2/c|
|Cell Parameters:||a = 9.056Å, b = 5.216Å, c = 20.282Å|
β = 99.64°
|Ratio:||a:b:c = 1.736 : 1 : 3.888|
|Unit Cell Volume:||V 944.51 Å³ (Calculated from Unit Cell)|
|Comment:||Data from Brigatti et al. (2005) (sample from Chedeville, France; polytype 2M2)|
Chemical Properties of Trilithionite
|Simplified for copy/paste:||K(Li,Al)3(AlSi3O10)(F,OH)2|
|Essential elements:||Al, F, K, Li, O, Si|
|All elements listed in formula:||Al, F, H, K, Li, O, Si|
Relationship of Trilithionite to other Species
|Series:||Forms a series with Polylithionite (see here)|
Forms a series with Polylithionite (see here)
|Member of:||Mica Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
Other Names for Trilithionite
|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 Trilithionite
Canadian Mineralogist (1998): 36: 905-912.
Brigatti, M. F., Caprilli E., Malferrari D., Medici L. and Poppi L. (2005) Crystal structure and chemistry of trilithionite-2M2 and polylithionite-2M2. European Journal of Mineralogy: 17(3): 475-481.
Internet Links for Trilithionite
Localities for Trilithionite
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: Xiuyu District, Putian Prefecture, Fujian Province, ChinaFrom Peter Haas, 31st Oct 2014 23:31:16