Weight is about 15.4 oz or 436 grams. Measures about 3 1/2" x 2 3/4" x 1 5/8".
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 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*