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. "Der Geologe fand kleine Hornblendekristalle in der vulkanischen Gesteinsprobe, die in der Nähe der Schule gesammelt wurde.geologymineralmaterialChat with AIVocabulary GamePractice Reading
