Ruby from Longido, Tanzania: Mining, Color, Inclusion, and Chemical Features
Yujie Gao,
Mingyue He,
Andrew Christopher Lucas
et al.
Abstract:This article reports on the recent mining and production status of ruby in Longido, Tanzania. Faceted-grade rubies and their matrix from Longido Area, Tanzania, were investigated by standard gemological testing, including FTIR, UV-VIS, Raman spectra, and LA-ICP-MS. Microscopic observations revealed dense needle-like and triangular inclusions, distinct growth lines, and color banding as typical inclusions. In agreement with the Raman results, the transmission FTIR spectrum confirmed the presence of aluminum hyd… Show more
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