Tourmalinated quartz is clear quartz with streaks of black tourmaline within it. This creates a crystal with the properties of both stones in one package.
Quartz is a natural amplifier and black tourmaline is excellent for cleansing your aura and protecting you from negative energy. Together, that cleansing is amplified.
Tourmalinated quartz is also a combination of root chakra and crown chakra crystals, which makes it excellent for balancing out all the chakras of the human body. It is a great stone for overall purification and balance of the energy system.