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Thulium(III) telluride is an inorganic compound, one of the tellurides of thulium, with the chemical formula Tm2Te3. It is an orthorhombic crystal with space groupFddd. It can dissolve in lead telluride at high temperatures to form a solid solution.
References
Eliseev, A. A.; Zinchenko, K. A.; Zemlyanukhina, V. M.; Nguyen Chin Tam. X-ray diffraction study of thulium tellurides(in Russian). Zhurnal Neorganicheskoi Khimii, 1976. 21 (10): 2603-2605.