Cleansing: Given the diversity of minerals (amethyst, lapis lazuli, jasper, etc.), it is best to opt for gentle methods, such as fumigation with sage or palo santo, or the use of sound (singing bowl) to clear accumulated energies, thus avoiding water or salt which could damage certain stones.
Recharging: To fully restore the set's power, expose it to the gentle moonlight, preferably during a full moon. You can also place it on a quartz cluster or an amethyst geode, known for their ability to amplify and revitalize the energy of other minerals.