2022
Celleriite, ☐(Mn22+Al)Al6(Si6O18)(BO3)3(OH)3(OH), a new mineral species of the tourmaline supergroup
BOSI, Ferdinando; Federico PEZZOTTA; Alessandra ALTIERI; Giovanni B. ANDREOZZI; Paolo BALLIRANO et. al.Základní údaje
Originální název
Celleriite, ☐(Mn22+Al)Al6(Si6O18)(BO3)3(OH)3(OH), a new mineral species of the tourmaline supergroup
Autoři
BOSI, Ferdinando; Federico PEZZOTTA; Alessandra ALTIERI; Giovanni B. ANDREOZZI; Paolo BALLIRANO; Gioacchino TEMPESTA; Jan CEMPÍREK; Radek ŠKODA; Jan FILIP; Renata ČOPJAKOVÁ; Milan NOVÁK; Anthony R. KAMPF; Emily D. SCRIBNER; Lee A. GROAT a R. James EVANS
Vydání
American Mineralogist, Mineralogical Society of America, 2022, 0003-004X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10504 Mineralogy
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.100
Kód RIV
RIV/00216224:14310/22:00119496
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000736146300003
EID Scopus
2-s2.0-85122727046
Klíčová slova anglicky
tourmaline; crystal-structure refinement; electron microprobe; Mössbauer spectroscopy; laser-induced breakdown spectroscopy; laser-ablation inductively coupled plasma massspectroscopy; Raman spectroscopy; Lithium; Beryllium; Boron
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 25. 2. 2025 09:24, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Celleriite, ☐(Mn2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH), is a new mineral of the tourmaline supergroup. It was discovered in the Rosina pegmatite, San Piero in Campo, Elba Island, Italy (holotype specimen), and in the Pikárec pegmatite, western Moravia, Czech Republic (co-type specimen). Celleriite in hand specimen is violet to gray-blue (holotype) and dark brownish-green (co-type) with a vitreous luster, conchoidal fracture, and white streak. Celleriite has a Mohs hardness of ~7 and a calculated density of 3.13 and 3.14 g/cm3 for holotype and its co-type, respectively. In plane-polarized light in thin section, celleriite is pleochroic (O = pale violet and E = light gray-blue in holotype; O = pale green and E = colorless in co-type) and uniaxial negative. Celleriite has trigonal symmetry: space group R3m, Z = 3, a = 15.9518(4) and 15.9332(3) Å, c = 7.1579(2) and 7.13086(15) Å, V = 1577.38(9) and 1567.76(6) Å3 for holotype and co-type, respectively (data from single-crystal X-ray diffraction). The crystal structure of the holotype specimen was refined to R1 = 2.89% using 1696 unique reflections collected with MoKα X-ray intensity data. Structural, chemical, and spectroscopic analyses resulted in the formulas: x(□0.58Na0.42)Σ1.00Y(Mn2+1.39Fe2+0.16Mg0.01Al1.14Fe3+0.01Li0.28Ti0.01)Σ3.00ZAl6[T(Si5.99Al0.01)Σ6.00O18] (BO3)3(OH)3w[(OH)0.65F0.03O0.32]Σ1.00(for holotype) and x(□0.51Na0.49)Σ1.00Y(Mn2+0.90Fe2+0.50Al1.36Fe3+0.04Li0.17Zn0.04)Σ3.00ZAl6[T(Si5.75B0.25)Σ6.00O18] (BO3)3(OH)3w[(OH)0.35F0.17O0.48]Σ1.00(for co-type) Celleriite is a hydroxy species belonging to the X-site vacant group of the tourmaline supergroup. The new mineral was approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association, proposal no. 2019-089. In the Rosina pegmatite, celleriite formed an overgrowth at the analogous pole of elbaite–fluorelbaite–rossmanite crystals during the latest stage of evolution of pegmatite cavities after an event of a pocket rupture. In the Pikárec pegmatite, celleriite occurs as an intermediate growth sector of elbaite, princivalleite, and fluor-elbaite.
Návaznosti
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