Weight is just over 12.1 oz or 344 grams. Measures about 2 3/4" x 2 3/8" x 1 7/8".
You receive the exact one in this photo as always in my listings.
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 space. Black Tourmaline will cleanse, purify, and transform dense energy into a lighter vibration*