Crystals and stones have energy to help with healing of the mind, body and spirit.  They can even improve your your mood and attract positive energy when creating a positive intention:  you can even feel tingling in the body at times that create positive energy.  Some people like to wear crystal/stone jewelry because they look good and compliment an outfit.  But they have greater purpose as well.  Some people carry crystals/stones in their purses or pant pocket for luck, protection, etc.   

Stones and Crystals do have different intentions and purposes.  If you pay close attention, you will feel their energy/heat, especially after being charged or if you use them on the chakras during meditation or in your prayer space.   There are hundreds of different crystals.  Such an abundance of choices!   It’s always a great idea to study and read a good  book to become more knowledgeable about any topic of interest.