Black Tourmaline. Average crystal weight 10grams. Approximately 1 and 1/4 to 1 and 3/4 inches.
Qualities: Purification, protection.
Chakras: Base (1st).
Black Tourmaline is a wonderful grounding stone that can help us stay centered in our own bodies and true to our path. As well it is one of the best stones availble for protection form negative energies.