The cerite and merrillite groups belong to the cerite supergroup. Some nomenclature and classification changes have been made to the cerite group, whereas the merrillite group remains unchanged. Minerals of the cerite group have the general formula A9XM[T7O24Ø4]Z3, where T is Si. The cerite group, from now on, is subdivided into two subgroups, cerite and taipingite. The root name will be cerite and taipingite if the Z anions are dominated by (OH) and F, respectively. The prefix ferri-or alumino-will be added if the M cations are dominated by Fe3+ or Al, respectively. If the M cation is Mg, there will be no prefix. Taking into account the valency-imposed double site occupancy and the site total charge approach, a double suffix will be used to represent the essential A constituents in the general chemical formula. Cerite-(Ce), aluminocerite-(Ce), ferricerite-(La), and taipingite-(Ce) have been renamed cerite-(CeCa), aluminocerite-(CeCa), ferricerite-(LaCa), and taipingite-(CeCa), respectively. The newly approved mineral aluminotaipingite-(CeCa) also belongs to the taipingite subgroup.

Changes to the cerite group nomenclature / Atencio, D.; Azzi, A. A.; Qu, K.; Miyawaki, R.; Bosi, F.; Momma, K.. - In: EUROPEAN JOURNAL OF MINERALOGY. - ISSN 0935-1221. - 35:6(2023), pp. 1027-1030. [10.5194/ejm-35-1027-2023]

Changes to the cerite group nomenclature

Bosi F.;
2023

Abstract

The cerite and merrillite groups belong to the cerite supergroup. Some nomenclature and classification changes have been made to the cerite group, whereas the merrillite group remains unchanged. Minerals of the cerite group have the general formula A9XM[T7O24Ø4]Z3, where T is Si. The cerite group, from now on, is subdivided into two subgroups, cerite and taipingite. The root name will be cerite and taipingite if the Z anions are dominated by (OH) and F, respectively. The prefix ferri-or alumino-will be added if the M cations are dominated by Fe3+ or Al, respectively. If the M cation is Mg, there will be no prefix. Taking into account the valency-imposed double site occupancy and the site total charge approach, a double suffix will be used to represent the essential A constituents in the general chemical formula. Cerite-(Ce), aluminocerite-(Ce), ferricerite-(La), and taipingite-(Ce) have been renamed cerite-(CeCa), aluminocerite-(CeCa), ferricerite-(LaCa), and taipingite-(CeCa), respectively. The newly approved mineral aluminotaipingite-(CeCa) also belongs to the taipingite subgroup.
2023
Cerite; nomenclature; crystal chemistry
01 Pubblicazione su rivista::01a Articolo in rivista
Changes to the cerite group nomenclature / Atencio, D.; Azzi, A. A.; Qu, K.; Miyawaki, R.; Bosi, F.; Momma, K.. - In: EUROPEAN JOURNAL OF MINERALOGY. - ISSN 0935-1221. - 35:6(2023), pp. 1027-1030. [10.5194/ejm-35-1027-2023]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1699430
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