Merkaba, also spelled Merkabah, is the divine light vehicle used by the Masters to connect with and reach those in tune with the higher realms.
The Merkaba Star is a special symbol from sacred geometry. In terms of geometry, the star resembles the Flower of Life: they have in common that they have a special symmetry. However, the star is a three-dimensional symbol with this geometry. Because of the special shape you keep looking at it. Just looking at it gives peace and focus.
Orgone is a combination of crystals, metal and (synthetic) resin, which is known to neutralize negative radiation. Neutralizing this radiation becomes possible because the quartz retains the radiation, and the metal and the synthetic resin repel it.
The mixed stones stand as the principal energy centers of the body and are believed to be the pathway of harmony between the mind, body, and soul.