Anything this stone comes into contact with, it increases the energy of it, another crystal, or a person, and so it's thought to actually strengthen the physical body. It brings about spiritual growth, raising one's vibrational energy. Working with Epidote for crystal healing may help clear energy blockages and help bring balance and stability back to a person's energy. When you're stuck in negative thought patterns, or struggling with depression you can work with Epidote to give you a sense of hope and optimism.
Raw stones are in their natural form, no polishing, no altering. They are more fragile and can break more easily than other formations, some prefer the look of a raw stone as that is how it would have been found in the Earth.
Your piece of Epidote will be intuitively chosen for you.