12172-67-7 13768-00-8 Actinolite Actinolite (Ca2((Mg0.5-0.89Fe0.11-0.5)4.5-5Al0-0.5)(Si7.5-8Al0-0.5)(OH)2O22) Actinolite [Asbestos] Ferroactinolite Ferroactinolyte