Výsledky vyhledávání - "Beatrice Celata"

Schorl breakdown at upper mantle conditions. Insights from an experimental study at 3.5 GPa

Autor: Beatrice Celata, Vincenzo Stagno, Luca S. Capizzi, Ferdinando Bosi, Paolo Ballirano, Annalisa D'Arco, Veronica Stopponi, Stefano Lupi, Piergiorgio Scarlato, Henrik Skogby, Giovanni B. Andreozzi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbb6331efea71dbfd11ce11cb03b88e0
https://hdl.handle.net/11573/1670416

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Autor: Beatrice Celata, Paolo Ballirano, Ferdinando Bosi, Alessandro Pacella

Publikováno v: Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials

This study aims to solve the site-occupancy issues of any crystalline substance, showing that the structure refinement results should not be limited to a simple description of the crystal geometry but should go beyond that, providing refined site-sca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81a80ab8741d251b31bbfa862a3ee3ea
http://europepmc.org/articles/PMC8337022

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Mn-bearing purplish-red tourmaline from the Anjanabonoina pegmatite, Madagascar

Autor: Henrik Skogby, Erica Bittarello, Beatrice Celata, Alessandra Marengo, Gioacchino Tempesta, Marco E. Ciriotti, Ulf Hålenius, Ferdinando Bosi

Publikováno v: Mineralogical Magazine. 85:242-253

A gem-quality purplish-red tourmaline sample of alleged liddicoatitic composition from the Anjanabonoina pegmatite, Madagascar, has been fully characterised using a multi-analytical approach to define its crystal-chemical identity. Single-crystal X-r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfce7f9f0e46920ff788a92fb69ffddc
https://doi.org/10.1180/mgm.2021.20

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In situ high-temperature behaviour of fluor-elbaite. Breakdown conditions and products

Autor: Beatrice Celata, Paolo Ballirano, Giovanni B. Andreozzi, Ferdinando Bosi

The thermal behaviour of a fluor-elbaite from Minas Gerais (Brazil) was investigated at room pressure through in situ high-temperature X-ray powder diffraction (HT-XRPD), until the breakdown conditions were reached. The variations of fluor-elbaite st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aa69a7cc32b5239f1493154c72702e8
http://hdl.handle.net/11573/1555855

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Crystal‑chemical behavior of Fe2+ in tourmaline dictated by structural stability: insights from a schorl with formula NaY(Fe2+2Al)Z(Al5Fe2+)(Si6O18)(BO3)3(OH)3(OH,F) from Seagull batholith (Yukon Territory, Canada)

Autor: Luca Samuele Capizzi, Ferdinando Bosi, Giovanni B. Andreozzi, Christopher E. Beckett-Brown, Vincenzo Stagno, Beatrice Celata

Publikováno v: Sapienza Università di Roma-IRIS

A black tourmaline sample from Seagull batholith (Yukon Territory, Canada) was established to be a schorl with concentrations of Fe2+ among the highest currently found in nature (FeOtot ~ 18 wt.% and Fe2+ ~ 100% of Fetot) on the basis of a multi-anal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99e3b3ec950c45310013dd2e7508dadd
https://iris.uniroma1.it/handle/11573/1399995

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