Nayak BB, Dash T, Mishra BK. Purple Coloured Natural Ruby: X-ray Photoelectron Spectroscopy, X-ray Diffraction, X-ray Tomography and Other Microstructural Characterizations. IJSBAR [Internet]. 2016 Feb. 5 [cited 2025 Dec. 10];25(2):94-114. Available from: https://gssrr.org/JournalOfBasicAndApplied/article/view/5123