Use these pendants for multiple purposes.  When bottles contain your favorite essential oil, the crystal will facilitate the joining of the essential oil energy to connect to you.  Double terminated crystals are very powerful and are known to “bring energies together”.  When you place the crystal between to objects, words or photos.. the energies will come together.  Thus, using the pendant will enable the oil frequency to join you simply by wearing it.  They can be warn in many ways as a larriet or  taken off and used as a pendulum.. Enjoy!