There are numerous ways to cleanse crystals and stones. It is a personal choice and you should use the method most comfortable for yourself. Below are some safe crystal cleansing methods.
☑️ Moonlight - Place crystals out under the moonlight on a full moon. This can be inside, for example on a window sill or directly outside.I like to leave mine out on my outdoor table setting over night.
☑️ Smudging - Cleanse with clear intent, love and clarity with a smudge stick of your choice. Sage is a common choice. Also Palo Santo and Frankincense are excellent choices.
☑️ Selenite - You can place your crystals on a selenite charging plate or with other selenite crystals under the full moon. Selenite recharges other Crystals, reactivates and amplifies energy of items placed on it. Selenite is named after Selene, the Greek goddess of the moon.
☑️ Earth - Bury your crystals in the earth for them to return to their grounding energies. Just be aware that some crystals are water soluble and may absorb moisture if left for too long. Alternatively pave crystals on a bowl of dirt and leave out under the full moon.
☑️ Salt - You can place your crystals on a bed of coarse sea salt or rock salt to absorb negative energies. Discard salt after use. You can integrate the full moon method by placing your salt bed under a full moon.
✖️Submerging crystals in water or salt water can cause irreversible damage to your crystals. However silica or the quartz family of crystals are relatively safe to be cleansed in water. These include amethyst, clear quartz, citrine, Smokey Quartz, Rose Quartz, Agate, Tiger Eye, Red jasper and aventurine.
Some examples of crystals that DEFINITELY CANNOT be cleansed in water are all calcite varieties, gypsum minerals, Moonstone, azurite, kyanite And kunzite just to name a few.
Some people rely on the Mohs scale with the idea that the hard crystals ( any thing over 5 on the Mohs scale) can be submerged in water. But you have to remember that the Mohs scale is a hardness test and not a water soluble measure.
Two interesting links from Ethan Lazzerini give an in depth look into safely cleansing crystals and why he never uses water.
Ethan Lazzerini is a crystal healing author and blogger with published books on crystal grids, healing and how to guides.
Charging plates like this Selenite plate are perfect for placing your crystals on to charge.