These chunks of Tourmaline, also known as "Haystack" Tourmaline are sourced and mined from Brazil. Each stone is unique in its own way and will be slightly bigger or smaller than the pictures.Black Tourmaline is a great stone to purify the environment around your house, office, or sacred space. Some of the protective qualities include getting rid of negative energy, aiding with anxiety/fear/and uncertainty and being a great source of grounding - black tourmaline is associated with the Root Chakra!We have 3 weights to choose from: 1/4 lb, 1/2 lb and 1 lb.1/4 lb (4 oz) - roughly 8-10 pieces1/2 lb (8 oz) - roughly 12-15 pieces1 lb (16 oz) - roughly 24-29 piecesThese pieces are great for wire wrapping, jewelry making, decor, meditating and other crafts! Each batch will be hand picked for you :)