Optimal Raman-scattering signal for estimating the Fe content on the clinozoisite–epidote join

M Nagashima, B Mihailova - European Journal of Mineralogy, 2023 - ejm.copernicus.org
To provide a tool for fast estimation of the Fe 3+ content in Ca 2 (Al, Fe 3+) 3 Si 3 O 12 (OH)
epidote grains, including in thin sections and crude-rock samples, we applied Raman …

The structural state of Finnish Cr-and V-bearing clinozoisite: insights from Raman spectroscopy

M Nagashima, T Armbruster, D Nishio-Hamane… - Physics and Chemistry …, 2021 - Springer
Severe structural damage in Cr-and V-bearing clinozoisite (Czo) from the Outokumpu
copper mine, Finland, was discovered by Nagashima et al.(Eur J Miner 23: 731–743, 2011) …

Distribution of Sc3+ at the octahedral sites and its effect on the crystal structure of synthetic Sc-bearing clinozoisite on the Ca2Al3Si3O12 (OH)-Ca2Al2ScSi3O12 (OH) …

M Nagashima, Y Morifuku, B Mihailova - Physics and Chemistry of …, 2024 - Springer
Synthetic Sc-bearing clinozoisite on the Ca2Al3Si3O12 (OH)-Ca2Al2Sc3+ Si3O12 (OH) join
was studied by single-crystal X-ray diffraction to understand better the distribution of Sc3+ …

Vanadoallanite-(La): a new epidote-supergroup mineral from Ise, Mie Prefecture, Japan

M Nagashima, D Nishio-Hamane… - Mineralogical …, 2013 - pubs.geoscienceworld.org
The new mineral, vanadoallanite-(La), found in the stratiform ferromanganese deposit from
the Shobu area, Ise City, Mie Prefecture, Japan, was studied using electron microprobe …

Synthesis and crystal chemistry of mukhinite, V-analogue of clinozoisite on the join Ca2Al3Si3O12(OH)–Ca2Al2VSi3O12(OH)

M Nagashima, D Nishio-Hamane, N Nakano… - Physics and Chemistry …, 2019 - Springer
This is the first report of the crystal structure of mukhinite, V-analogue clinozoisite, on the join
Ca 2 Al 3 Si 3 O 12 (OH)–Ca 2 Al 2 V 3+ Si 3 O 12 (OH) synthesized at 1.5 GPa and 800° C …

High-pressure Cr3+ R-line luminescence of zoisite and kyanite: a probe of octahedral site distortion

EF O'Bannon III, Q Williams - Physics and Chemistry of Minerals, 2022 - Springer
The Cr3+ luminescence spectra of zoisite and kyanite, two geologically important minerals,
were studied up to 40 and 20 GPa, respectively, in various pressure media. Cr3+ substitutes …

X-ray Rietveld and 57Fe Mössbauer studies of epidote and piemontite on the join Ca2Al2Fe3+Si3O12(OH)–Ca2Al2Mn3+Si3O12(OH) formed by …

M Nagashima, M Akasaka - American Mineralogist, 2010 - pubs.geoscienceworld.org
Abstract Fe3+ and Mn3+ distributions on octahedral M1, M2, and M3 sites in synthetic
epidote/piemontite from Ca2Al2Fe3+ q Mn3+ 1− q Si3O12. 5 starting material and their …

Ferriakasakaite-(La) and ferriandrosite-(La): new epidote-supergroup minerals from Ise, Mie Prefecture, Japan

M Nagashima, D Nishio-Hamane… - Mineralogical …, 2015 - pubs.geoscienceworld.org
The new REE-rich, monoclinic, epidote-supergroup minerals ferriakasakaite-(La) and
ferriandrosite-(La), found in tephroite±calcite veinlets cutting the stratiform ferromanganese …

Crystal chemistry of Ti-rich ferriallanite-(Ce) from Cape Ashizuri, Shikoku Island, Japan

M Nagashima, T Imaoka… - American …, 2011 - pubs.geoscienceworld.org
The crystal chemistry of Ti-rich ferriallanite-(Ce) in syenites from Cape Ashizuri, Shikoku
Island, Japan, was studied using electron microprobe analysis (EMPA) and single-crystal X …

Severe structural damage in Cr- and V-rich clinozoisite: relics of an epidote-group mineral with Ca2Al2Cr3+Si3O12(OH) composition?

M Nagashima, T Armbruster… - European journal …, 2011 - pubs.geoscienceworld.org
Cr-rich clinozoisite with up to 0.89 Cr3+ apfu and additional 0.23 V3+ apfu originating from
the Outokumpu copper mine, Finland, was studied by electron microprobe analyses, laser …