You've received your crystals and stones, now what? Cleansing crystals is more than just cleaning the dirt off of them. The goal is to cleanse the crystals of all of the energy that it has picked up from different places and people before it got to you. You want to cleanse the crystals and set your own intentions for each stone.
There isn't a right or wrong answer to this question. There are many methods that can be used to cleanse your crystals. You can smudge them with sage or incense by passing the crystals through the smoke. Crystals can be cleansed with Florida water or buried in the back yard for 2 to 3 days. They can be soaked overnight (as long as it is safe) in sea salt water and essential oils. You can even place your crystals in a mesh bag, and rinse them in a flowing body of water (river, beach/ocean).
Healing Crystals can be charged in a variety of ways. One of the most common ways to charge your crystals are to set them in sun or moonlight. Crystals that won't fade can easily be charged by sitting them outdoors for a few hours.
Crystals can also be charged by holding them in your giving hand (which is your left hand) and imagining a flow of white light flowing from you into the crystal.
Crystals can be charged when placed in a bigger cluster or on selenite. Burying the stones can also assist with charging.
Once you're cleansed your crystals, hold each one in your hand, and remember the reason you purchased that particular stone. For example, if you purchased a rose quartz for the purpose of enhancing self love, you'll hold the stone in your giving hand, which is normally your left hand, and you will picture a white light, bathing the crystal in that intention.
You have the power to sent your own intentions in your stones. Do what feels right, hold the stones with both hands and blow your intentions into them. There is no right or wrong way.
Removing unwanted energy from your crystals is a must. For example, If you have a piece of black tourmaline next to your computer at work, you want to cleanse the electromagnetic energy its pulling from the area around you. You'll want to cleanse that collected energy from you and your work environment, bi-weekly or monthly (completely up to you).
Always do what feels right, pay attention to the energy that the crystals are giving off, and If they make you feel uneasy or unbalanced, cleanse them.