Energizing
Once your crystal has been cleansed you will need to energize it again so that it can continue to release its own natural vibrations and energies. There are several ways to energize crystals and the most popular methods are as follows:
1) Water Energizing
Allow your crystals to sit in a drinking glass or bowl under cool running tap water for several minutes, 10-20 minutes should be long enough. If you are near a natural running river, stones can be placed in an open mesh bag and left for a short time in the natural running water. Running water can both cleanse as well as energize the stones at the same time. Please check that your crystal can be emerged safely in water, since some should not be left to soak in water as this can have an adverse effect on them. Specifically, porous stones or those with high metal content.
2) Sunshine/Moonlight
The natural energies transmitted by the Sun and Moon can also energize your crystals with natural energies. Many people like to leave their newly cleansed stones under Moonlight and Sunlight for a day or two to allow them to absorb the different energies from the Moon and Sun. Some believe the Sun provides a stronger energy, whereas the Moon has a more gentle energy. When leaving crystals in Sunlight, please be aware that some colored stones may fade over a period of time if left in strong sunlight too often. This can happen with Amethyst, for example. In this case, try not to leave your crystals in strong sun for more than an hour or so. To be on the safe side, place in sunlight during sunrise and/or sunset because the sun's rays won't be as strong during these times of the day. Regarding moonlight, there is no known negative effect towards crystals, which is why it is not only popular for cleansing and charging, but even recommended for being a safer method of use when compared to the discoloration effect by the sun.
3) Physical Contact
Native Americans believe that it's not always necessary to energize crystals with any of the above methods because they will naturally energize themselves from our body's own energy field when they are picked up and handled, or rubbed between the palms of the hands.So this is another method you may want to consider. Feel free to do whatever you feel is best for you and your crystals, or you may wish to use one or all the above methods when energizing your own crystals.