Abstract: This dataset is a compilation of chemical composition of global distributed amphibolite-facies rocks. Both meta-igneous and meta-sedimentary rocks are included. The goal of this compilation is to estimate the average composition of middle continental crust, where the temperature and pressure is close to amphibolite-facies metamorphism condition. Other Description: Abu El-Enen, M. M. (2008), Geochemistry and metamorphism of the Pan-African back-arc Malhaq volcano-sedimentary Neoproterozoic association, W. Kid area, SE Sinai, Egypt, Journal of African Earth Sciences, 51(4), 189-206, doi: 10.1016/j.jafrearsci.2008.01.004. Andersson, U. B., W. Ghebreab, and M. Teklay (2006), Crustal evolution and metamorphism in east-central Eritrea, south-east Arabian-Nubian Shield, Journal of African Earth Sciences, 44(1), 45-65, doi: 10.1016/j.jafrearsci.2005.11.006. Arakawa, Y., K. H. Park, N. H. Kim, Y. S. Song, and H. 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