Check out this amazing piece of rough malachite!
Malachite is a copper carbonate mineral with a monoclinic crystal system and a hardness of 3.5 to 4. Its name comes from the Greek word for its color, malache (mallow). Malachite is one of the most important stones for protection from negative energies. It permeates the auric field with positive vibrations and strengthens the natural energetic “shell” which can screen out hostile forces, and it activates the “psychic radar” with which one feels the presence of danger.