 | | Report (issue) | | Y2Mn(Si3O7)4 Chiappinoite-(Y) Crystal Data: Orthorhombic. Point Group: 2/m 2/m 2/m. As thin to thick...= 1.598(1) 2V(calc.) = 25.4° Orientation: X = c, Y = b, Z = a. Cell Data: Space Group: Ibam. a = 7.5549(3)...X-ray Powder Pattern: Água de Pau volcano, Sãn Miguel Island, Azores District, Portugal. 3.544 (100), 9.84...70.84 100.00 (1) Água de Pau volcano, Sãn Miguel Island, Azores District, Portugal; average of 6 electron...Distribution: From the Água de Pau volcano, Sãn Miguel Island, Azores District, Portugal. Name: Honors Luigi |  | Nazzareni, Sabrina, Nestola, Fabrizio, Zanon, Vittorio, Bindi, Luca, Scricciolo, Enrico, Petrelli, Maurizio, Zanatta, Marco, Mariotto, Gino, Giuli, Gabriele (2019) Discovery of moissanite in a peralkaline syenite from the Azores Islands. Lithos, 324. 68-73 doi:10.1016/j.lithos.2018.10.036 | Journal (article/letter/editorial) | | of moissanite in a peralkaline syenite from the Azores Islands Sabrina Nazzareni, Fabrizio Nestola, Vittorio...of moissanite in a peralkaline syenite from the Azores Islands. Lithos (2018), https://doi.org/10.1016/j...of moissanite in a peralkaline syenite from the Azores Islands PT SABRINA NAZZARENIA,*, FABRIZIO NESTOLAB...GABRIELE GIULIG Instituto de Investigação em Vulcanologia e Avaliação de Riscos / Universidade dos Açores...Firenze, Firenze, Italy PT E d D Delgada, Portugal e f INFN, Perugia, Italy g CE Dipartimento |  | | Journal (article/letter/editorial) | | for 17 new minerals, including camaronesite, chiappinoite-(Y), cobaltoblödite, domerockite, erikapohlite...MINERAL NAMES Chiappinoite-(Y)* Domerockite* A.R. Kampf and R.M. Housley (2015) Chiappinoite-(Y), Y2Mn(Si3O7)4...peralkaline syenitic ejecta from the Água de Pau volcano, Azores. European Journal of Mineralogy, 27(1)... Mineralogical Magazine, 77(4), 509–522. Chiappinoite-(Y) (IMA 2014-040), ideally Y2Mn(Si3O7)4, was...discovered at the Água de Pau volcano (Fogo volcano), Sãn Miguel Island, Azores District, Portugal. The mineral |  | Kampf, Anthony R., Housley, Robert M., Dunning, Gail E., Walstrom, Robert E. (2015) ESQUIREITE, BaSi6O13∙7H2O, A NEW LAYER SILICATE FROM THE BARIUM SILICATE DEPOSITS OF CALIFORNIA. The Canadian Mineralogist, 53 (1) 3-12 doi:10.3749/canmin.1400076 | Journal (article/letter/editorial) | | no dispersion or pleochroism; optical orientation: Y = b; Z ^ c ≈ 22° in obtuse β. Six electron-microprobe...pleochroism were observed. The optical orientation is Y = b; Z ^ c ≈ 22° in obtuse β. CHEMICAL COMPOSITION...O4 O5 O6 O7 O8 O9 O10 O11 O12 O13 O14 occ. x/a y/b z/c Ueq 1 1 1 1 1 1 1 1 1 1 1 0.5 0.5 0.5 0.5... lemoynite (Le Page & Perrault 1976), and chiappinoite-(Y) (Kampf & Housley 2014). TABLE 5. SELECTED...R., CAMALLI, M., CARROZZINI, B., CASCARANO, G.L., DE CARO, L., GIACOVAZZO, C., POLIDORI, G., & SPAGNA |  | | Journal (article/letter/editorial) | | is [6]-coordinated by O2–4(OH)–2. Minasgeraisite-(Y) is more complicated as it has triclinic P1 (rather...similar symmetry and cation order as minasgeraisite-(Y) (Cooper and Hawthorne, 2017). The apophyllite-group...3:2:1 (Fig. 24a). In the structure of yakovenchukite-(Y) (Fig. 24b; Table 5), there is one type of four-membered...24b). The interstitial complex in yakovenchukite-(Y) consists of two K+ (+ some Na+) ions coordinated...[except in mottanaite-(Ce) where it is O2–8 (x2)]; Y = Ca2+, Y3+, HREE3+, Th4+, U4+ at the M2 site which |
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Água de Pau Volcano, São Miguel, Azores, Portugal