Each one emits a unique vibrational energy and can help with specific intentions. It’s good to familiarize yourself with the properties of each crystal.
Keep in mind that crystals can absorb the negative energy from their surroundings or other people. Cleansing these crystals will make space for a more positive energy flow.
Whenever you feel called by your crystal, hold it in your hand. If the stone is large, you can simply place your hand on it. Center yourself by sitting quietly and being mindful of your breathing.
You can keep smaller crystals close to you as jewelry while bigger crystals can be placed in different spots in your house — especially in places that need a certain energy vibration.