actinolite
/ækˈtɪnəlaɪt/noun
mass noun
- a green mineral of the amphibole group containing calcium, magnesium, and iron and occurring chiefly in metamorphic rocks and as a form of asbestos阳起石。
词源
late 18th cent.: from Greek aktis, aktin- 'ray' + lithos 'stone' （because of the ray-like crystals）.