noun🔗ShareПеридотитA rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earth's mantle."The geologist studied the peridotite sample, knowing it represented a piece of the Earth's mantle. "Геолог изучил образец перидотита, зная, что он представляет собой часть мантии Земли.geologymaterialmineralChat with AIVocabulary GamePractice Reading