Shungite One of the more well-known and expected consequences of Mercury retrograde is technology issues. For these annoying instances, Bahri recommends using shungite. "Keep a piece next to your computer and phones. Not only does this stone help your device work more efficiently, it helps purify any EMFs before reaching your physical body," she says. Shungite also supports all chakras, so it's a great multipurpose option. Image Source: Shungite by James St. John CC BY 2.0