| | Report (issue) | Diffraction Pattern: Curiglia, Veddasca Valley, Luino (Varese), Lombardy, Italy. 2.567 (100), 2.934 (78)...0.42 2.55 0.18 99.45 (1) Curiglia village, Veddasca valley, Lombardy, Italy; average electron microprobe...Polymorphism & Series: Substitutionally related to oxy-schorl and darrellhenryite. Mineral Group: Tourmaline...supergroup, alkali group. Na-dominant at the X position, oxy-dominant at W, O2– > (F + OH), and Al3+ dominant...in late-stage metamorphic fluids. Association: Oxy-schorl, muscovite, quartz, albitic plagioclase, K-feldspar | | Bosi, Ferdinando, Pezzotta, Federico, Skogby, Henrik, Altieri, Alessandra, HÃ¥lenius, Ulf, Tempesta, Gioacchino, CempÃrek, Jan (2022) Princivalleite, Na(Mn2Al)Al6(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup from Veddasca Valley, Varese, Italy. Mineralogical Magazine, 86 (1) 78-86 doi:10.1180/mgm.2022.3 | Journal (article/letter/editorial) | tourmaline supergroup from Veddasca Valley, Varese, Italy Ferdinando Bosi1* , Federico Pezzotta2, Henrik...5, I-00185 Rome, Italy; 2Natural History Museum, Corso Venezia 55, 20121 Milan, Italy; Department of Geosciences...Università degli Studi di Bari Aldo Moro, Bari, Italy; and 5Department of Geological Sciences, Faculty...occurs in the Veddasca Valley, Luino area, Varese, Lombardy, Italy (46°03’30.74’’N, 8°48’24.47’’E) at the...[O0.66F0.22(OH)0.12]Σ1.00. Princivalleite is an oxy-species belonging to the alkali group of the tourmaline |
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