ONYX-Energy is projective with the element of Fire. It is used for protection as well as defense against negativity directed toward you.

OPAL-Energy is both projective and receptive and is associated with all the elements. It is worn during astral projection for protection as well as to facilitate the process. It is a luck bringing stone.
     Fire Opals are used in drawing money.
     Black Opals are power stones. They are worn as ritual jewelry to increase the amount of power aroused and released from the body during the magick.

PERIDOT-Energy is receptive with the element of Earth. It is worn or carried for general healing purposes. It is used to attract love as well as to calm raging anger. It is also used to soothe nervousness and to dispel all negative emotions.