Amulet and Talisman are closely related terms, but there are some distictions between the two. An amulet is a more passive item, such as a natural material worn as a lucky charm to ward off harm. Familiar amulets are four leaf clovers or a rabbit's foot.
(See also Talisman)
From Latin amuletum (Pliny) \thing worn as a charm against spells, disease, etc.,\" of uncertain origin, perhaps related to amoliri \"to avert, to carry away, remove.\""