noun🔗Share角閃石、構造的に類似した含水二重ケイ酸塩鉱物の大きなグループAny of a large group of structurally similar hydrated double silicate minerals, containing various combinations of sodium, calcium, magnesium, iron, and aluminium/aluminum"The geologist identified the dark, shiny crystals in the rock sample as amphibole, noting their complex silicate structure and varying metal content. "地質学者は、岩石標本中の暗く光沢のある結晶を角閃石と特定し、その複雑なケイ酸塩構造と多様な金属含有量に注目した。mineralgeologymaterialchemistryChat with AIVocabulary GamePractice Reading