One of a kind Thomsonite cabochon. This natural Thomsonite cabochon measures 27 x 16mm. Thomsonite is a rare form of zeolite which forms in the cavities of lava. It's coloring can range from pure white to shades of pink, red, brown, green, orange and black, sometimes with inclusions of bits of copper. Thomsonite is a protective stone warding off the evil eye and psychic attacks. This crystal helps to lift brain fog and clear the mind to facilitate emotional growth.