Toledoite, TiFeSi, a New Mineral from Inclusions in Corundum Xenocrysts from Mount Carmel, Israel-Reference-Cited by-同舟云学术

Toledoite, TiFeSi, a New Mineral from Inclusions in Corundum Xenocrysts from Mount Carmel, Israel

Published:2024-01-21 Issue:1 Volume:14 Page:96
ISSN:2073-4352
Container-title:Crystals
language:en
Short-container-title:Crystals

Author:

Ma Chi¹^ORCID,Cámara Fernando²^ORCID,Bindi Luca³^ORCID,Griffin William L.⁴^ORCID

Affiliation:

1. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA

2. Dipartimento di Scienze della Terra “A. Desio”, Università degli Studi di Milano, Via Mangiagalli 34, I-20133 Milan, Italy

3. Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Via La Pira 4, I-50121 Florence, Italy

4. ARC Centre of Excellence for Core to Crust Fluid Systems and GEMOC, Earth and Environmental Sciences, Macquarie University, Macquarie Park, NSW 2109, Australia

Abstract

During our nanomineralogical investigation of melt inclusions in corundum xenocrysts from the Mount Carmel area, Israel, seven new oxide and alloy minerals have been discovered since 2021. Herein, we report toledoite (TiFeSi; IMA 2022-036), a new alloy mineral. Toledoite occurs as irregular crystals 2–16 μm in size, with gupeiite (Fe3Si), jingsuiite (TiB2), ziroite (ZrO2), osbornite (TiN), xifengite (Fe5Si3), and naquite (FeSi) in corundum Grain WG1124E-1. Toledoite has an empirical formula (Ti0.83Cr0.07Mn0.06V0.02)(Fe0.96Mn0.04)(Si0.99P0.04) and an orthorhombic Ima2 TiFeSi-type structure with the following cell parameters: a = 7.00(1) Å, b = 10.83(1) Å, c = 6.29(1) Å, V = 477(1) Å3, Z = 12. Toledoite is a high-temperature alloy phase, formed under extremely reduced conditions in melt pockets in corundum xenocrysts derived from the upper mantle beneath Mount Carmel in Israel. The name was given in honor of Vered Toledo, of Shefa Gems Ltd. for her support and for providing corundum xenocrysts from the Mount Carmel region for this investigation of new minerals.

Funder

TEOREM deciphering geological processes using Terrestrial and Extraterrestrial ORE Minerals

Publisher

MDPI AG

Link

https://www.mdpi.com/2073-4352/14/1/96/pdf

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