akˈtinəˌlīt noun
( -s )
Etymology: actin- + -lite; translation of German strahlstein
: a mineral consisting of a bright green or grayish green variety of amphibole containing calcium, magnesium, and iron Ca(Mg,Fe) 5 Si 8 O 22 (OH) 2 and occurring often in fibrous, radiated, or columnar forms (sp. gr. 3-3.2)
• ac·tin·o·lit·ic |akˌtinəˈlid.ik, ak|t- adjective