Weight is about 14.1 oz or 402 grams. Measures about 4" x 1 7/8" x 2 3/8".
You receive the exact one in this photo.
Please note that this crystal is natural, and they all have variations in them and "imperfections"
*Black Tourmaline is a protective stone that repels and blocks negative energies and psychic attacks. Black Tourmaline also aids in the removal of negative energies within a person or a space. Black Tourmaline will cleanse, purify, and transform dense energy into a lighter vibration*