Black Tourmaline
Used in crystal practice as a protective, grounding stone; often said to block negative energy.
Spiritual meaning
Used in crystal practice as a protective, grounding stone; often said to block negative energy.
How people use it
Placed by doors or electronics, or carried.
What the evidence says
No evidence it blocks negative energy or electromagnetic fields.
Crystals are not medicine. No controlled study has shown crystals have effects beyond placebo. Don't use them in place of medical care.
Safety
Generally safe.
Where to get it
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