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 …

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 …

[HTML][HTML] First-principles calculations of equilibrium silicon isotope fractionation in metamorphic silicate minerals

Y Li, W Wang, C Zhou, F Huang - Solid Earth Sciences, 2019 - Elsevier
In this study, silicon isotope fractionation factors for metamorphic silicate including
muscovite, epidote, and kyanite are calculated using first-principles methods based on …

Cu-and Mn-doped forsterite: sol–gel synthesis, and optical and colorimetric investigation

N Siragi, M El Hadri, H Ahamdane… - Bulletin of Materials …, 2021 - Springer
Cu-doped forsterite Mg 2− x Cu x SiO 4 (0.1≤ x≤ 0.6) and Mn-doped forsterite Mg 2− x Mn
x SiO 4 (0.2≤ x≤ 1) powders have been prepared by sol–gel method and characterized by …

Structural Breakdown of Natural Epidote and Clinozoisite in High-T and Low-P Conditions and Characterization of Its Products

P Kozáková, M Miglierini, M Čaplovičová, R Škoda… - Minerals, 2022 - mdpi.com
A heat treatment was performed on selected epidote and clinozoisite crystals to establish the
nature of any changes in the optical and crystal-chemical properties and to identify a …

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 …

[PDF][PDF] Crystal chemical investigations of epidote group minerals from two Bulgarian localities: Effects of Mn content and Mn/Fe ratio on the structural peculiarities.

V Kostov-Kytin, R Nikolova, S Georgieva… - Geologica …, 2023 - researchgate.net
The current study presents results of crystal chemical studies of epidote samples from two
Central Rhodope localities. Based on the obtained crystal chemical information, the …

Manganiferous minerals of the epidote group from the Archaean basement of West Greenland

A Katerinopoulou, T Balic-Zunic, A Berger… - Bulletin of the …, 2014 - boris.unibe.ch
The chemical compositions and crystal structures of Mn3+-containing minerals from the
epidote group in Greenland rocks are investigated and described in detail. They occur in …