These Rough Tourmaline Rods are sourced and mined from Brazil. Each stone is unique in its own way and will be slightly bigger or smaller than the pictures. We have a variety of sizes to choose from such as small, medium, large, extra large, or extra extra large. 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! While scientific evidence supporting the effectiveness of healing crystals is limited, many people find them to be a valuable tool for promoting holistic wellness and self-care. Each healing crystal is a product of Mother Nature's intricate processes, formed over millennia within the Earth's crust through geological phenomena. Due to the unique conditions of their formation, no two crystals are exactly alike, resulting in variations in color, size, and shape.