Prossima pubblicazione.
Referenza:
▪ Hawthorne, F.C. & Pieczka, A. (2018): Classification of the minerals of the graftonite group. Mineralogical Magazine, 82, (in press).
Classification of the minerals of the graftonite group
- Marco E. Ciriotti
- Messaggi: 31675
- Iscritto il: ven 25 giu, 2004 11:31
- Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
- Contatta:
Classification of the minerals of the graftonite group
Marco E. Ciriotti
«Things are interesting only in so far as they relate themselves to other things»
«Things are interesting only in so far as they relate themselves to other things»
- Marco E. Ciriotti
- Messaggi: 31675
- Iscritto il: ven 25 giu, 2004 11:31
- Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
- Contatta:
Re: Classification of the minerals of the graftonite group
Graftonite group
Beusite-(Ca) CaMn2+2(PO4)2
Beusite Mn2+Mn2+2(PO4)2
Graftonite Fe2+Fe2+2(PO4)2
Graftonite-(Ca) CaFe2+2(PO4)2
Graftonite-(Mn) Mn2+Fe2+2(PO4)3
Beusite-(Ca) CaMn2+2(PO4)2
Beusite Mn2+Mn2+2(PO4)2
Graftonite Fe2+Fe2+2(PO4)2
Graftonite-(Ca) CaFe2+2(PO4)2
Graftonite-(Mn) Mn2+Fe2+2(PO4)3
Marco E. Ciriotti
«Things are interesting only in so far as they relate themselves to other things»
«Things are interesting only in so far as they relate themselves to other things»
- Marco E. Ciriotti
- Messaggi: 31675
- Iscritto il: ven 25 giu, 2004 11:31
- Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
- Contatta:
Re: Classification of the minerals of the graftonite group
Pubblicazione effettuata.
Referenza:
▪ Hawthorne, F.C. & Pieczka, A. (2018): Classification of the minerals of the graftonite group. Mineralogical Magazine, 82, 1301-1306.
Abstract:
A classification and nomenclature scheme has been approved by the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification for the minerals of the graftonite group. The crystal structures of these minerals have three distinct sites that are occupied by Fe2+, Mn2+ and Ca2+. These sites have coordination numbers [8], [5] and [6], and these differences lead to very strong order of Fe2+, Mn2+ and Ca2+ over these sites. As a result of this strong order, the following compositions have been identified as distinct species: graftonite: FeFe2(PO4)2; graftonite-(Ca): CaFe2(PO4)2; graftonite-(Mn): MnFe2(PO4)2; beusite: MnMn2(PO4)2; and beusite-(Ca): CaMn2(PO4)2.
Referenza:
▪ Hawthorne, F.C. & Pieczka, A. (2018): Classification of the minerals of the graftonite group. Mineralogical Magazine, 82, 1301-1306.
Abstract:
A classification and nomenclature scheme has been approved by the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification for the minerals of the graftonite group. The crystal structures of these minerals have three distinct sites that are occupied by Fe2+, Mn2+ and Ca2+. These sites have coordination numbers [8], [5] and [6], and these differences lead to very strong order of Fe2+, Mn2+ and Ca2+ over these sites. As a result of this strong order, the following compositions have been identified as distinct species: graftonite: FeFe2(PO4)2; graftonite-(Ca): CaFe2(PO4)2; graftonite-(Mn): MnFe2(PO4)2; beusite: MnMn2(PO4)2; and beusite-(Ca): CaMn2(PO4)2.
Marco E. Ciriotti
«Things are interesting only in so far as they relate themselves to other things»
«Things are interesting only in so far as they relate themselves to other things»
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