Citation: Makovicky, E.; Skinner, B. J. (1979). Studies of the sulfosalts of copper VII. Crystal structures of the exolution products Cu12.3Sb4S13 and Cu13.8Sb4S13 of unsubstituted synthetic tetrahedrite Sample: Cu-rich tetrahedrite Cu13.8Sb4S13. The Canadian Mineralogist, 17, pp. 619-634.