Abstract
Ilmenite (Fe2+TiO3) and geikielite (MgTiO3) are important terrestrial minerals relevant to the geology of the Earth, the Moon, Mars, and meteorite samples. Raman spectroscopy is a powerful technique that allows for mineral cation determination for the ilmenite–geikielite solid solution. We report on a suite of nine samples within the ilmenite–geikielite solid solution and provide context for their quantitative interpretation. We compare a univariate Raman peak position model for predicting ilmenite composition with a multivariate machine learning model. The univariate model is currently recommended, though the multivariate model may become superior if the data set size is increased. This study lays the groundwork for quantifying Fe (ilmenite) and Mg (geikielite) within oxide minerals using a cheap, portable, and efficient technology like Raman spectroscopy.
Acknowledgments and Funding
We are grateful to the NASA SSERVI RIS4E and RISE2 nodes for their support. We thank Steven Jaret and the other reviewer for their insightful feedback that improved the quality of this work. Data Availability: The Raman spectral data are archived in an external data repository at https://zenodo.org/records/10210991 (Breitenfeld et al. 2023).
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Articles in the same Issue
- Germanium distribution in Mississippi Valley-Type systems from sulfide deposition to oxidative weathering: A perspective from Fule Pb-Zn(-Ge) deposit, South China
- Characterization and potential toxicity of asbestiform erionite from Gawler Downs, New Zealand
- First widespread occurrence of rare phosphate chladniite in a meteorite, winonaite Graves Nunataks (GRA) 12510: Implications for phosphide–phosphate redox buffered genesis in meteorites
- K isotopic fractionation in K-feldspar: Effects of mineral chemistry
- Jarosite formation in Permian-Triassic strata at Xiakou (South China): Implications for jarosite precipitation from H2S upwelling on Mars
- The effect of A-site cations on charge-carrier mobility in Fe-rich amphiboles
- Calorimetry and structural analysis of uranyl sulfates with rare topologies
- Biological control of ultra-skeleton mineralization in coral
- Systematic study of high field strength elements during liquid immiscibility between carbonatitic melt and silicate melt
- Clustering and interfacial segregation of radiogenic Pb in a mineral host-inclusion system: Tracing two-stage Pb and trace element mobility in monazite inclusions in rutile
- First application of scintillator-based photon-counting computed tomography to rock samples: Preliminary results and prospects
- GCDkit.Mineral: A customizable, platform-independent R-language environment for recalculation, plotting, and classification of electron probe microanalyses of common rock-forming minerals
- Apatite as an archive of pegmatite-forming processes: An example from the Berry-Havey pegmatite (Maine, U.S.A.)
- Re-examination of vesbine in vanadate-rich sublimate-related associations of Vesuvius (Italy): Mineralogical features and origin
- Temperature and compositional dependences of H2O solubility in majorite
- Raman spectroscopy of the ilmenite–geikielite solid solution