Pack of 4. Clear Quartz with Black Tourmaline crystal inclusions is a combination that creates perfect polarity in male/female energies by harmonizing the extremes. The clear quartz acts to amplify the protective qualities of the tourmaline eliminating almost any degree of negative energy. Grounding, very protective and dissipates destructive tendencies. Inspires stability, equality & serenity. Very valuable for problem solving. Sample Photo.