There are many different ways to energetically cleanse and charge your crystals. Using the elements such as Water and Earth are popular options. Smudging with sage and palo santo are tried and true methods as well. At the end of the day it comes down to preference. So let's dive deeper into my personal preferred method. It works for all crystals, stones, and energetic tools which is why I gravitate to it.
I use sound to cleanse, charge, and attune all of my crystals and Orgone Energy Tools. Technically Orgone Energy Tools never need charging or cleansing, but that's a whole topic in itself. Now I don't mean that I won't use other methods. I regularly use palo santo and sage for the ritualistic feel, and the lovely aroma they provide. But many people are not aware of the benefits of sound when it comes to energy work. Let's expand on this while I have your attention.
In simple terms, everything is vibrating whether we perceive it or not. From the smallest atoms to the biggest natural explosions. Everything in creation is vibrating. This is a big reason why many people use the sound vibrations of binaural beats during meditation. Sound waves affect our physical vibration. The same can be said for crystals. So how can you use sound to cleanse your crystal collection?
My preferred method is using a Tibetan Singing Bowl. Simply place a small crystal inside and play the bowl. For bigger pieces you can play the bowl close to the specimen. You can use binaural beats by playing the music loudly near your crystals so they can absorb the resonance. A lovely metaphysical sound bath. You can even use the power of your own voice. Place your crystal on a surface, cup your hands around your mouth, and loudly chant a mantra of your choice. Try it out next time your crystal babies need charging. You might be surprised by the results.