Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, a new
mineral species of the tourmaline supergroup

J 2025

Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup

BOSI, Ferdinando; Alessandra ALTIERI; Henrik SKOGBY; Federico PEZZOTTA; Ulf HALENIUS et al.

Základní údaje

Originální název

Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup

Autoři

BOSI, Ferdinando; Alessandra ALTIERI; Henrik SKOGBY; Federico PEZZOTTA; Ulf HALENIUS; Gioacchino TEMPESTA; Paolo BALLIRANO; Tomáš FLÉGR a Jan CEMPÍREK

Vydání

MINERALOGICAL MAGAZINE, CAMBRIDGE, CAMBRIDGE UNIV PRESS, 2025, 0026-461X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10504 Mineralogy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.400 v roce 2024

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/25:00143169

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

ferro-bosiite; new mineral species; crystal-structure refinement; electron microprobe; infrared spectroscopy; optical absorption spectroscopy; pegmatite pocket collapse; late-stage fluids; Marina pegmatite; Mozambique; Mössbauer spectroscopy

Štítky

14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 7. 1. 2026 11:30, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, is a new mineral of the tourmaline supergroup. It was found in a giant collapsed cavity discovered in the Marina granitic pegmatite, at the Mavuco locality, Alto Ligonha, Mozambique. Ferro-bosiite occurs as a black acicular late-stage overgrowth at the analogous pole of a multicoloured fluor-elbaite crystal. The black crystals, with a vitreous lustre, have a brown streak, conchoidal fracture and a Mohs hardness of ∼7. Ferro-bosiite is uniaxial (–), with refractive indices ω = 1.675(5) and ε = 1.645(5). It has trigonal symmetry, space group R3m, a = 16.0499(5) Å, c = 7.2977(2) Å, V = 1628.03(11) Å3, Z = 3 and calculated density = 3.216 g/cm3. The crystal structure was refined to R1 = 2.55% using 1547 unique reflections collected with MoKα X-ray intensity data. Crystal-chemical analysis resulted in the empirical crystal-chemical formula: X(Na0.99K0.02)Σ1.01Y(Fe3+1.56V3+0.02Mg1.01Fe2+0.20Mn2+0.03Ti0.16Li0.02)Σ3.00Z(Al4.32Fe3+0.41Fe2+1.22Mg0.05)Σ6.00T[(Si5.99Al0.01)Σ6.00O18] (BO3)3O(3)(OH)3O(1)[O0.62(OH)0.34F0.04]Σ1.00. Ferro-bosiite is an oxy-species belonging to alkali group 3 of the tourmaline supergroup. It is related to bosiite by the substitution ZFe2+ ↔ ZMg. The new mineral has been approved by the International Mineralogical Association’s Commission on New Minerals, Nomenclature and Classification (IMA 2020-069). Ferro-bosiite forms part of a continuous solid-solution trend from Fe3+-rich oxy-dravite to dutrowite, driven by increasing Fe3+ and Ti, and X-site vacancies. At its type locality, ferro-bosiite formed during late-stage interaction with B-rich hydrothermal fluids that became enriched in Fe and Mg, probably due to a distinct fluid phase active after the collapse of a giant cavity.

Citovat

BOSI, Ferdinando; Alessandra ALTIERI; Henrik SKOGBY; Federico PEZZOTTA; Ulf HALENIUS; Gioacchino TEMPESTA; Paolo BALLIRANO; Tomáš FLÉGR a Jan CEMPÍREK. Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup. MINERALOGICAL MAGAZINE. CAMBRIDGE: CAMBRIDGE UNIV PRESS, 2025, roč. 89, č. 6, s. 886-896. ISSN 0026-461X. Dostupné z: https://doi.org/10.1180/mgm.2025.10114.

@article{2544660,
   author = {Bosi, Ferdinando and Altieri, Alessandra and Skogby, Henrik and Pezzotta, Federico and Halenius, Ulf and Tempesta, Gioacchino and Ballirano, Paolo and Flégr, Tomáš and Cempírek, Jan},
   article_location = {CAMBRIDGE},
   article_number = {6},
   doi = {https://doi.org/10.1180/mgm.2025.10114},
   keywords = {ferro-bosiite; new mineral species; crystal-structure refinement; electron microprobe; infrared spectroscopy; optical absorption spectroscopy; pegmatite pocket collapse; late-stage fluids; Marina pegmatite; Mozambique; Mössbauer spectroscopy},
   language = {eng},
   issn = {0026-461X},
   journal = {MINERALOGICAL MAGAZINE},
   title = {Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup},
   url = {https://doi.org/10.1180/mgm.2025.10114},
   volume = {89},
   year = {2025}
}

TY  - JOUR
ID  - 2544660
AU  - Bosi, Ferdinando - Altieri, Alessandra - Skogby, Henrik - Pezzotta, Federico - Halenius, Ulf - Tempesta, Gioacchino - Ballirano, Paolo - Flégr, Tomáš - Cempírek, Jan
PY  - 2025
TI  - Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup
JF  - MINERALOGICAL MAGAZINE
VL  - 89
IS  - 6
SP  - 886-896
EP  - 886-896
PB  - CAMBRIDGE UNIV PRESS
SN  - 0026461X
KW  - ferro-bosiite
KW  - new mineral species
KW  - crystal-structure refinement
KW  - electron microprobe
KW  - infrared spectroscopy
KW  - optical absorption spectroscopy
KW  - pegmatite pocket collapse
KW  - late-stage fluids
KW  - Marina pegmatite
KW  - Mozambique
KW  - Mössbauer spectroscopy
UR  - https://doi.org/10.1180/mgm.2025.10114
N2  - Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, is a new mineral of the tourmaline supergroup. It was found in a giant collapsed cavity discovered in the Marina granitic pegmatite, at the Mavuco locality, Alto Ligonha, Mozambique. Ferro-bosiite occurs as a black acicular late-stage overgrowth at the analogous pole of a multicoloured fluor-elbaite crystal. The black crystals, with a vitreous lustre, have a brown streak, conchoidal fracture and a Mohs hardness of ∼7. Ferro-bosiite is uniaxial (–), with refractive indices ω = 1.675(5) and ε = 1.645(5). It has trigonal symmetry, space group R3m, a = 16.0499(5) Å, c = 7.2977(2) Å, V = 1628.03(11) Å3, Z = 3 and calculated density = 3.216 g/cm3. The crystal structure was refined to R1 = 2.55% using 1547 unique reflections collected with MoKα X-ray intensity data. Crystal-chemical analysis resulted in the empirical crystal-chemical formula: X(Na0.99K0.02)Σ1.01Y(Fe3+1.56V3+0.02Mg1.01Fe2+0.20Mn2+0.03Ti0.16Li0.02)Σ3.00Z(Al4.32Fe3+0.41Fe2+1.22Mg0.05)Σ6.00T[(Si5.99Al0.01)Σ6.00O18] (BO3)3O(3)(OH)3O(1)[O0.62(OH)0.34F0.04]Σ1.00. Ferro-bosiite is an oxy-species belonging to alkali group 3 of the tourmaline supergroup. It is related to bosiite by the substitution ZFe2+ ↔ ZMg. The new mineral has been approved by the International Mineralogical Association’s Commission on New Minerals, Nomenclature and Classification (IMA 2020-069). Ferro-bosiite forms part of a continuous solid-solution trend from Fe3+-rich oxy-dravite to dutrowite, driven by increasing Fe3+ and Ti, and X-site vacancies. At its type locality, ferro-bosiite formed during late-stage interaction with B-rich hydrothermal fluids that became enriched in Fe and Mg, probably due to a distinct fluid phase active after the collapse of a giant cavity.
ER  -

BOSI, Ferdinando; Alessandra ALTIERI; Henrik SKOGBY; Federico PEZZOTTA; Ulf HALENIUS; Gioacchino TEMPESTA; Paolo BALLIRANO; Tomáš FLÉGR a Jan CEMPÍREK. Ferro-bosiite, NaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup. \textit{MINERALOGICAL MAGAZINE}. CAMBRIDGE: CAMBRIDGE UNIV PRESS, 2025, roč.~89, č.~6, s.~886-896. ISSN~0026-461X. Dostupné z: https://doi.org/10.1180/mgm.2025.10114.

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