There are also several gemstones to stop overthinking that are highly recommended if you are searching for solutions to free your mind and still be productive. Of the list, Amethyst is one of the best as it has excellent properties such as reducing anxiety and inducing mental calmness. Blue Lace Agate is yet another powerful gemstone that has calm energy that helps to overcome stress and favors effective communication. If you’re not familiar with lepidolite, this pretty stone is full of lithium and perfect for calming down an overactive brain. Black Tourmaline is specifically useful in clearing out negative energies and cents from one’s Aura. For the best gemstones to stop overthinking one can wear these stones as accessories or else can use them during the time of meditation. Both their energies are conducive towards achieving this purpose of calming the mind, strengthening one’s emotions and a positive aura of tranquility.