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Definition of Pyrolite
1. Noun. A theoretical rock considered to be the best approximation of the composition of Earth's upper mantle, generally considered to be one part tholeiitic basalt and three parts dunite. ¹
¹ Source: wiktionary.com
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1. Noun. A theoretical rock considered to be the best approximation of the composition of Earth's upper mantle, generally considered to be one part tholeiitic basalt and three parts dunite. ¹
¹ Source: wiktionary.com