Raman Spectra of Minerals

Чуканов, Н. В.; Вигасина, М. Ф.

doi:10.1007/978-3-030-26803-9_4

Cited by 10 publications

(10 citation statements)

References 1,701 publications

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“…Franklinite (347, 493, 597, 661, and 1206 cm –1 ) occurred in more than half of the measured spots but was relatively more abundant in the top spots Qz-L1-2 and Qz-L1-3 and the side spots Qz-L2-6, Qz-L3-2, Qz-L3-4, Qz-L3-6, Qz-L4-2, and Qz-L4-4. Hematite (227, 246, 293, 299, 411, 497, 612, and 1320 cm –1 ) occurred in Qz-L3-4, Qz-L4-2, Qz-L4-4, and Qz-L4-6. Exceptionally, the top spot Qz-L1-3 was featured with graphene oxides (1350 and 1583 cm –1 ) which could possibly be a contaminant from aluminum foils, and the top spot Qz-L4-1 was exceptionally featured with diamond bands (1332.6 cm –1 ).…”

Section: Resultsmentioning

confidence: 99%

“…Based on S.T. Japan () and RRUFF () Raman Spectra databases, all seven top spectra and most (14/16) of side spectra (Figure ) of the Qaidam quartz stone were universally dominated by bands of quartz (128, 205, 263, 354, 401, 463, 697, 808, 1083, 1160, and 1231 cm –1 ) . Franklinite (347, 493, 597, 661, and 1206 cm –1 ) occurred in more than half of the measured spots but was relatively more abundant in the top spots Qz-L1-2 and Qz-L1-3 and the side spots Qz-L2-6, Qz-L3-2, Qz-L3-4, Qz-L3-6, Qz-L4-2, and Qz-L4-4.…”

Section: Resultsmentioning

confidence: 99%

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Geochemical and Biological Profiles of a Quartz Stone in the Qaidam Mars Analog Using LIBS: Implications for the Search for Biosignatures on Mars

Shen

Liu

Chen

et al. 2022

ACS Earth Space Chem.

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Biosignature detection is one of the most important goals in Mars exploration missions. Since the Mars Science Laboratory (MSL) mission, the laser-induced breakdown spectrometer (LIBS) has become an essential payload due to its convenience and versatility in profiling elemental chemistry, and the most recent rovers Perseverance and Zhurong both have one onboard for the chemical characterization at their landing sites on Mars. Here, we attempt to study whether and to what extent using LIBS spectral data is possible to differentiate biotic and abiotic chemical signals. A clastic quartz stone collected from a Mars analog setting, the western Qaidam Basin of western China, was selected for LIBS analysis. Raman spectroscopy was used as a detector of organic signals to support the presence of potential hypolithic communities and the dearth of epilithic biomass on the rock. This study constructs a pseudo-three-dimensional geochemical profile of the Qaidam analog quartz stone, a representative of rocks with relatively homogeneous mineral compositions and limited bulk nonuniformity that have previously been found on Mars (Smith and Bandfield,

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Geochemical and Biological Profiles of a Quartz Stone in the Qaidam Mars Analog Using LIBS: Implications for the Search for Biosignatures on Mars

Shen

Liu

Chen

et al. 2022

ACS Earth Space Chem.

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“…Infrared (IR) and Raman spectra of minerals and rocks have been investigated extensively. 1–5 However, those spectra of biogenic minerals have not been studied well. Moreover, studies of low-frequency regions of IR, far-infrared (FIR), and Raman spectra have been behind even for minerals and rocks.…”

Section: Introductionmentioning

confidence: 99%

“…Of note is that the studies of biogenic minerals using FIR and low-frequency Raman spectroscopy have been rather rare. The second purpose is to disclose polymorphism of minerals, 1–5 differences in crystal structure among the aragonite and aragonite biogenic minerals, 6,7 water adsorption, 8–10 and mean atomic volume of crystals in the minerals and biogenic minerals, and to detect small amounts of carotenoids in the three kinds of shells. This study has demonstrated that IR, FIR, and Raman spectroscopy have each advantage in investigating the physical and chemical properties of minerals and biogenic minerals.…”

Section: Introductionmentioning

confidence: 99%

Attenuated Total Reflection Infrared and Far-Infrared, and Raman Spectroscopy Studies of Minerals, Rocks, and Biogenic Minerals

Tsuboi,

Tamura,

Kitanaka

et al. 2023

Appl Spectrosc

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Attenuated total reflection infrared (ATR-IR, 4000–400 cm–1), ATR-far-IR (ATR-FIR, 400–50 cm–1), and Raman spectra (4000–10 cm–1) were measured for calcium carbonate, three kinds of minerals (calcite, aragonite, and quartz), two kinds of rocks (obsidian and pumice), and four kinds of biogenic minerals, i.e., coral (aragonite), Ruditapes philippinarum (aragonite), Meretrix lusoria (aragonite), and Corbicula japonica (aragonite), to investigate the polymorphism of minerals and biogenic minerals, differences in the crystal structure among aragonite and aragonite biogenic minerals, water in the minerals and biogenic minerals, Boson peaks of obsidian and pumice, very small amounts of carotenoids in the three kinds of shells, and so on. In this study, we put some emphasis on the low-frequency region of IR (FIR) and Raman spectra. ATR-FIR spectra were measured down to 50 cm–1 and Raman spectra were obtained down to 10 cm–1. Second derivative spectra were calculated for the FIR spectra. It has been found from the present study that the FIR spectra are the most powerful for exploring polymorphism and differences in the crystal structure among aragonite and aragonite biogenic minerals. A Boson peak, which is a characteristic low-frequency Raman band for amorphous materials, was observed at around 40 cm–1 in the Raman spectra of obsidian and pumice. The Boson peak of pumice is located at a lower frequency by 12 cm–1 than that of obsidian, indicating that the mean atomic volume of pumice is larger than that of obsidian. The present study has revealed that IR spectra are useful to investigate the amounts and structure of fluid and bound water. Moreover, it has also been found that Raman spectra can detect a very tiny amount of carotenoids in the shells due to the resonance Raman effect.

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“…The structural unit of tooth enamel is an enamel prism, the main component of which is represented by the crystalline compound hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 ). Vibrational spectroscopy methods (IR spectroscopy and Raman spectroscopy) are the main methods for studying the structural features and defects of crystalline mineral compounds [8], such as tooth enamel [9] and bone tissues [10]. The Raman scattering spectra of crystals exhibit high-intensity narrow-spectral phonon modes of crystal lattice oscillations, which makes it possible to study it in detail.…”

Section: Introductionmentioning

confidence: 99%

Studying the Degree of Tooth Enamel Mineralization through Raman Spectroscopy in Various Spectral Ranges

et al. 2021

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In vitro and in vivo methods of Raman spectroscopy have been developed to assess the degree of mineralization of the enamel of different functional groups. This article presents comparative studies that were carried out using scanning Raman microspectroscopy with various sources of laser excitation with wavelengths of 532, 785, and 1064 nm. It is shown that the intensity of Raman scattering of enamel can be a measure of its thickness. The obtained dependence of the Raman scattering intensity on the distance from the incisal edge is in good agreement with the literature data, where two independent methods (computer tomography and electron microscopy) are used to determine the enamel thickness values. The proposed methods can be considered as potential quantitative methods for express diagnostics of the state of tooth enamel in vivo.

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Raman Spectra of Minerals

Cited by 10 publications

References 1,701 publications

Geochemical and Biological Profiles of a Quartz Stone in the Qaidam Mars Analog Using LIBS: Implications for the Search for Biosignatures on Mars

Geochemical and Biological Profiles of a Quartz Stone in the Qaidam Mars Analog Using LIBS: Implications for the Search for Biosignatures on Mars

Attenuated Total Reflection Infrared and Far-Infrared, and Raman Spectroscopy Studies of Minerals, Rocks, and Biogenic Minerals

Studying the Degree of Tooth Enamel Mineralization through Raman Spectroscopy in Various Spectral Ranges

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