RICCARDO LUPPI

PhD Student

PhD program:: XXXIX
email: riccardo.luppi@uniroma1.it
phone: (+39) 3804721631
building: Mineralogia CU005
room: 112 o 4 (aula dottorandi)

supervisor: Prof. Ferdinando Bosi
co-supervisor: Dr. Federico Pezzotta

Research: Study of color mechanisms in natural and treated gemstone tourmalines, with definition of a scientific protocol

My PhD project is focused on understanding and delving into the mechanisms and causes of the origin of natural color and color obtained through laboratory treatments in tourmalines. Two of the most valuable and expensive varieties of tourmaline (paraíba and rubellite) will be thermally treated, irradiated with electrons, and subjected to chemical-physical, spectroscopic and structural characterization. The objectives of this project include the development of a crystal-chemical model for interpreting color changes, the distinction between natural and treated, and the formulation of a scientifically shareable treatment protocol.

Research products

11573/1749102 - 2025 - Elbaite, the neotype material from the Rosina pegmatite, San Piero in Campo, Elba island, Italy

Bosi, Ferdinando; Pezzotta, Federico; Skobgy, Henrik; Luppi, Riccardo; Ballirano, Paolo; Hålenius, Ulf; Tempesta, Gioacchino; Agrosì, Giovanna; Sejkora, Jiří - 01a Articolo in rivista

paper: EUROPEAN JOURNAL OF MINERALOGY (Stuttgart : Schweizerbart) pp. 505-516 - issn: 1617-4011 - wos: WOS:001532868300001 (0) - scopus: 2-s2.0-105017325633 (0)

11573/1688417 - 2023 - Thermal treatment of the tourmaline Fe‑rich princivalleite Na(Mn2Al)Al6(Si6O18)(BO3)3(OH)3O

Altieri, Alessandra; Luppi, Riccardo; Skogby, Henrik; Hålenius, Ulf; Tempesta, Gioacchino; Pezzotta, Federico; Bosi, Ferdinando - 01a Articolo in rivista

paper: PHYSICS AND CHEMISTRY OF MINERALS (Heidelberg; Berlin: Springer) pp. - - issn: 1432-2021 - wos: WOS:001064917300001 (2) - scopus: 2-s2.0-85170362994 (2)