Results 1 to 10 of about 61 (57)

The parisite-(Ce) enigma: challenges in the identification of fluorcarbonate minerals. [PDF]

Mineral Petrol, 2021
AbstractA multi-methodological study was conducted in order to provide further insight into the structural and compositional complexity of rare earth element (REE) fluorcarbonates, with particular attention to their correct assignment to a mineral species.
Zeug M, Nasdala L, Ende M, Habler G, Hauzenberger C, Chanmuang N C, Škoda R, Topa D, Wildner M, Wirth R.   +9 more
europepmc   +8 more sources

HRTEM investigation of bastnäsite–parisite intergrowths from Mount Malosa (Malawi): ordered sequences, polysomatic faults, polytypic disorder, and a new parisite-(Ce) polymorph

European Journal of Mineralogy, 2019
This high-resolution transmission electron microscopy (HRTEM) investigation of (Ca, REE)-fluorcarbonates from Mount Malosa (Malawi), previously characterized by bulk techniques, is aimed at elucidating the pervasive syntactic intergrowths that commonly affect these minerals.
Giancarlo Capitani
exaly   +3 more sources

KUKHARENKOITE-(Ce) AND ITS MINERAL ASSEMBLAGE IN PEGMATITES OF THE VISHNEVYE MOUNTAINS (SOUTH URALS) [PDF]

Минералогия, 2021
A rare Ba and REE fluorocarbonate kukharenkoite-(Ce) Ba2 Ce(CO3 )3 F with empirical formula (Ba1.88Sr0.17)2.05(Ce0.53La0.31Nd0.11)0.95(CO3 )3 F was found in alkali pegmatite of vein no. 35 in the Vishnevye Mountains, South Urals. Kukharenkoite-(Ce) forms
V.I. Popova, M.A. Rassomakhin, V.A. Popov, A.M. Kuznetsov, S.M. Lebedeva   +4 more
doaj   +1 more source

Bastnäsite-(Ce) and Parisite-(Ce) From Mt. Malosa, Malawi

Gems & Gemology, 2010
Fabrizio Nestola, Alessandro Guastoni
exaly   +2 more sources

RöENTGENITE-(CE) AND OTHER REE FLUORCARBONATES FROM VEIN no. 35, VISHNEVYE MOUNTAINS, SOUTHERN URALS [PDF]

Минералогия, 2019
A mineral assemblage including REE fluorcarbonates (röntgenite-(Ce) Ca2Ce3(CO3)5F3 , parisite-(Ce) CaCe2(CO3 )3F2 , synchisite-(Ce) CaCe(CO3 )2F and bastnäsite-(Ce) Ce(CO3 )F) was discovered at the dumps of the Vein № 35 open pit, Mt.
A.V. Kasatkin, R. Škoda, F. Nestola, A.M. Kuznetsov, E.V. Belogub, A.A. Agakhanov   +5 more
doaj   +1 more source

Late hydrothermal mineralization in a fenitic halo of the Ilmenogorsk alkaline complex (South Urals) [PDF]

Минералогия
Late hydrothermal veins exposed in the northern wall of the Novy peeble quarry are studied in a fenitic halo of the western contact of the Ilmenogorsk miaskite complex (South Urals) using scanning electron microscopy, Raman spectroscopy and X-ray ...
M.A. Rassomakhin, E.V. Belogub, M.S. Avdontceva, V.N. Bocharov   +3 more
doaj   +1 more source

The parisite-(Ce) mineralization associated with the Fazenda Varela carbonatite (Correia Pinto, SC)

Pesquisas em Geociências, 2013
O carbonatito Fazenda Varela faz parte do complexo alcalino de Lages (SC), que pertence ao final do Cretáceo. O carbonatito ocorre na forma de abundantes veios que cortam arenitos da Formação Rio Bonito que foram fortemente brechados e metassomatizados.
Manfredi, Tamara Reginatto, Bastos Neto, Artur C., Pereira, Vitor P., Barbanson, Luc, Schuck, Cristine   +4 more
openaire   +4 more sources

Vielleaureite-(Ce), a new epidote of the dollaseite group, coexisting with Mn-dominant hellandite in Mn deposits of the central Pyrenees [PDF]

European Journal of Mineralogy
The new rare-earth element (REE) bearing epidote-supergroup mineral vielleaureite-(Ce), Mn2+Ce(MgAlMn2+)(Si2O7)(SiO4)F(OH), is described from a Paleozoic stratiform Mn ore deposit at the Coustou mine above the village of Vielle-Aure, Hautes Pyrénées ...
A. Ragu, L. Bindi, P. Bonazzi, L. Remusat, C. Chopin   +4 more
doaj   +1 more source

NEW FINDINGS OF RARE MINERALS IN PEGMATITES OF VISHNEVYE MOUNTAINS IN THE SOUTHERN URALS [PDF]

Минералогия, 2019
In addition to previously known 221 minerals, 11 new rare minerals were identified in alkali pegmatites of the Vishnevye Mountains. Yttrialite-(Y)Y2(Si2O7) and huanghoite-(Ce) aCe(CO3 2F were found for the first time in the Urals.
V.I. Popova, V.A. Popov, I.A. Blinov, V.A. Kotlyarov, A.V. Kasatkin, R. Škoda, S.M. Lebedeva   +6 more
doaj  

Rare earth elements and yttrium minerals in altered granite-porphyry and hosting high-alumina schists in the Pellapahk Cu-Mo occurrence (Kolmozero-Voronya Belt)

Vestnik MGTU
Rare Earth Elements (REE) and yttrium phosphates monazite-(Ce) and xenotime-(Y), fluorine carbonates synchysite-(Ce) and parisite-(Ce), silicate allanite-(Ce) have been studied in the metamorphic rocks in the area of the Pellapahk Cu-Mo porphyry ...
Kalinin A. A., Khachatryan M. G., Savchenko Ye. E.   +2 more
doaj   +1 more source