1) Place the cleansed crystal that can be immersed in water in a clean glass bowl filled with water. If the crystal should not be immersed in water, place it in a small bowl in a larger water-filled bowl.
2) Place the bowl where it can stand in the morning sunlight for several hours.
3) Remove the crystal and pour the essence into a dark glass bottle with air tight stopper. To keep the essence for more than a week, double the volume of liquid in the bottle by adding clear alcohol or vodka as a preservative.
4) Label the essences with the crystal's name and date of preparation. Store them in a cool, dark place.