noun🔗ShareHornblendeA green to black amphibole mineral, of complex structure, formed in the late stages of cooling in igneous rock."The geologist found small crystals of hornblende in the igneous rock sample collected near the school. "Le géologue a trouvé de petits cristaux de hornblende dans l'échantillon de roche ignée prélevé près de l'école.geologymineralmaterialChat with AIVocabulary GamePractice Reading
