Tourmaline is the most powerful protective stone.
Physically, it stimulates reflex points connected to the tailbone, strengthens muscles, and the nervous system.
Blocks of all kinds can be treated with small tourmaline wands.
One should always carry one (in a pocket or as jewelry) to protect against harmful energies from those around us and also from certain painful events.
Black tourmaline is the stone of grounding; it promotes a return to consciousness and prevents us from succumbing to madness.
Its special features: this stone protects us against static electricity phenomena and Hertzian waves (to be placed near televisions, computers, mobile phones, and all electrical devices). When combined with rose quartz or rock crystal, its effectiveness increases.
Purification and recharging: to purify it, immerse it in salted distilled water and recharge it in sunlight or moonlight (especially during a full moon).