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X-ray Computer Tomography (XCT) and Raman Spectral Studies on S02 Meteorite.

Raju PVS.

JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA

https://doi.org/10.17491/jgsi/2025/174212 

A rare stony meteorite (S02) was discovered during a gold exploration survey in Jonnagiri, Kurnool (Andhra Pradesh). The 5 cm sample showed regmaglypts, a Widmanstätten pattern, and magnetic properties. Detailed analytical investigations were conducted using several techniques, including Powder X-ray Diffraction (PXRD), Energy Dispersive X-ray Fluorescence (EDXRF), SEM, Raman, X-ray tomography and basic petrological studies. As per the Gazette of India the sample has been submitted to custodian of meteorites in Geological Survey of India for further study with CSIR-NGRI tag. The Analyses confirmed Mg-rich olivine (fayalite) and identified a Raman spectral feature indicating the presence of water-bearing ringwoodite. This suggests the meteorite contains primary water, providing new insights into water storage in Earth’s mantle and processes related to diamond-bearing magma.

(a) S02 Meteorite sample. (b) X-ray Computer Tomography of specimen showing chondrules.

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