“Black Tourmaline is a personal favourite of mine, I wear it all year round and I would recommend this crystal to everyone” - Darnoo. It will create a protective shield around you, keeping you safe from physical harm or psychic attack, sending the negativity back to its original source. If you have a stressful job, wearing Black Tourmaline can be beneficial as it will bring you a sense of security. This powerful gemstone will also protect you from electromagnetic radiation from phones, computers, etc, and might benefit people suffering from arthritis and lower back pain.