Talisman.
An object carried or kept for its supposed protective, attracting, or empowering influence, often charged with intention or ritual.
A talisman is an object kept or carried for the influence it is believed to bring. The word comes through French and Arabic from the Greek telesma, "consecrated object." Talismans appear across cultures and centuries: inscribed metal discs, knotted cords, carved seals, small leather pouches, and, very often, stones.
The classical distinction in occult literature is that a talisman is charged for a purpose: to draw something in (luck, love, opportunity, courage) rather than only to ward something off. The charging is usually a ritual, simple or elaborate, that links the object to a clear intention. From that point onward the object acts as a daily cue and a focus.
In modern crystal practice almost any stone can be made into a personal talisman. A piece of clear quartz set on a window for a season, a small carnelian carried in a wallet during a job change, or a labradorite worn as a pendant during travel are all working talismans in the older sense. The stone matters less than the relationship the carrier has to it. A talisman is a quiet agreement with oneself made portable.