Micro-FTIR and EPMA Characterisation of Charoite from Murun Massif (Russia)‎

Author

Lacalamita, Maria

Source

Journal of Spectroscopy

Issue

Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2018-04-03

Country of Publication

Egypt

No. of Pages

6

Main Subjects

Physics

Abstract EN

Combined micro-Fourier transform infrared (micro-FTIR) and electron probe microanalyses (EPMA) were performed on a single crystal of charoite from Murun Massif (Russia) in order to get a deeper insight into the vibrational features of crystals with complex structure and chemistry.

The micro-FTIR study of a single crystal of charoite was collected in the 6000–400 cm−1 at room temperature and after heating at 100°C.

The structural complexity of this mineral is reflected by its infrared spectrum.

The analysis revealed a prominent absorption in the OH stretching region as a consequence of band overlapping due to a combination of H2O and OH stretching vibrations.

Several overtones of the O-H and Si-O stretching vibration bands were observed at about 4440 and 4080 cm−1 such as absorption possibly due to the organic matter at about 3000–2800 cm−1.

No significant change due to the loss of adsorbed water was observed in the spectrum obtained after heating.

The occurrence of well-resolved water bending vibration bands at about 1595 and 1667 cm−1 accounts for more than one structural water molecule as expected by charoite-90 polytype structure model from literature.

The chemical composition of the studied crystal is close to the literature one.

American Psychological Association (APA)

Lacalamita, Maria. 2018. Micro-FTIR and EPMA Characterisation of Charoite from Murun Massif (Russia). Journal of Spectroscopy،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1202688

Modern Language Association (MLA)

Lacalamita, Maria. Micro-FTIR and EPMA Characterisation of Charoite from Murun Massif (Russia). Journal of Spectroscopy No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1202688

American Medical Association (AMA)

Lacalamita, Maria. Micro-FTIR and EPMA Characterisation of Charoite from Murun Massif (Russia). Journal of Spectroscopy. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1202688

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1202688