Actinolite wani ma'adinai ne mai kore ko launin toka mai launin toka wanda aka samu a cikin duwatsun metamorphic. Wani nau'i ne na calcium da magnesium silicate, tare da tsarin sinadaran Ca2 (Mg, Fe) 5Si8O22 (OH) 2. Actinolite yawanci ana siffanta shi da dogayen lu'ulu'u na bakin ciki da fibrous ko siffa, kuma galibi ana amfani dashi azaman dutsen ado ko gemstone. Har ila yau, a wasu lokuta ana amfani da shi a aikace-aikacen masana'antu a matsayin abin da zai hana ko kuma a matsayin tushen magnesium.