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Allanite Group from
Trimouns Talc Mine, Luzenac, Foix, Ariège, Occitanie, France


Locality type:Quarry
Classification
Species:'Allanite Group' (not an IMA approved species)
Formula:(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Comments:The Allanite group xls here are intergrowths of Dark green Allanite-(Ce) and brown Dissakisite-(Ce). Crystals of a single colour should be analysed to determine the species.
Habit:Prismatic terminated xls.
Colour:Dark green Allanite-(Ce), brown Dissakisite-(Ce)
Luminescent properties:none
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Dolomite6 photos of Allanite Group associated with Dolomite at this locality.
Calcite4 photos of Allanite Group associated with Calcite at this locality.
Bastnäsite-(Ce)4 photos of Allanite Group associated with Bastnäsite-(Ce) at this locality.
Quartz2 photos of Allanite Group associated with Quartz at this locality.
Hingganite-(Y)1 photo of Allanite Group associated with Hingganite-(Y) at this locality.
Iimoriite-(Y)1 photo of Allanite Group associated with Iimoriite-(Y) at this locality.
Clinochlore1 photo of Allanite Group associated with Clinochlore at this locality.
Dissakisite-(Ce)1 photo of Allanite Group associated with Dissakisite-(Ce) at this locality.
Data
Mineral Data:Click here to view Allanite Group data
Locality Data:Click here to view Trimouns Talc Mine, Luzenac, Foix, Ariège, Occitanie, France
Photo GalleryView Gallery (20 photos)
Data Identifiers
Mindat Occurrence Record ID:924500
Long-form Identifier:1:3:924500:6
GUID (UUID V4):0efbe5e0-9d36-467d-84af-586aeb97b95b
Nearest other occurrences of Allanite Group
27.5km (17.1 miles) Rieutort, Puyvalador, Prades, Pyrénées-Orientales, Occitanie, France
50.7km (31.5 miles) La Fourque granodiorite outcrop, Salau, Seix, Saint-Girons, Ariège, Occitanie, France
54.9km (34.1 miles) Anglade Mine, Salau, Seix, Saint-Girons, Ariège, Occitanie, France
60.6km (37.6 miles) Balatg, Taurinya, Prades, Pyrénées-Orientales, Occitanie, France
62.2km (38.6 miles) Costabonne mines (Costabona mines), Prats-de-Mollo-la-Preste, Céret, Pyrénées-Orientales, Occitanie, France
69.0km (42.9 miles) Correc de las Canals, Corsavy, Céret, Pyrénées-Orientales, Occitanie, France
74.2km (46.1 miles) Salsigne mine, Salsigne, Carcassonne, Aude, Occitanie, France
93.4km (58.0 miles) Mas d'en Freixa, Montesquieu-des-Albères, Céret, Pyrénées-Orientales, Occitanie, France
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
existing accepted mineral species: (i) the gatelite group – includes members that can be derived from the...västmanlandite group – includes members typified by the mineral västmanlandite-(Ce). This group is derived...unique member of this potential group; and (iii) the alnaperbøeite group – includes members typified by...by the mineral alnaperbøeite-(Ce). This group is derived from gatelite-(Ce) by homovalent substitutions...Alnaperbøeite-(Ce) is the unique known member of this potential group. We recommend that the nomenclature of the gatelite
Journal (article/letter/editorial)
formulae: the epidote group, A12+A22+M13+M23+M33+(Si2O7) (SiO4)O(OH); the allanite group, A12+A23+M13+M23+M32+(Si2O7)... the dollaseite group, A12+A23+M12+M23+M32+(Si2O7) (SiO4)F(OH); the askagenite group, A12+A23+M13+M23+M33+(Si2O7)...Ø10 site demonstrates clear affinity to the OH group due to the strong hydrogen bond, which results in...högbomite supergroup, Zn-bearing members of the spinel group, hematite, albite, potassic feldspar, quartz, dolomite...clinopyroxenes, amphiboles, phlogopite, chlorite, and talc. Among the accessory minerals in these associations
Journal (article/letter/editorial)
found in a small copper mine at Bastnäs, known as S:t Göransgruvan (“St. George’s mine”). This material is...of the younger, late Svecofennian (1.81–1.75 Ga) group vary from undeformed, homogeneous granites to migmatites...6 m thick and less than 10 m long (Geijer 1921). Talc and quartz appear locally. Sulfide minerals, dominantly...comprising, e.g., tremolite, cummingtonite, almandine, talc, micas and chlorite minerals (Geijer & Magnusson...from an in situ occurrence in this case. In the mine dumps, sporadic finds of magnetite–amphibole skarn
Report (volume)
a simple mineral may have turned into a complex group. A continuous update is necessary, and the “Reviews...this gap should be filled. The epidote mineral group consists of important rock-forming minerals such...geochemical important accessory minerals such as allanite, and minerals typical for rare bulk compositions...edited the last comprehensive review on this mineral group almost 20 years ago in 1986. In 1990, on the occasion...entitled “Recent advances in studies of the epidote group” that highlighted the relevance of the epidote minerals
 
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