Color: transparent with black sticklike inclusions
Astrological sign(s): Scorpio, Gemini
Mohs scale: 7
Spiritual uses: The black tourmaline in tourmalinated quartz helps you to ground your spiritual practice into everyday life.
Mental uses: Tourmalinated quartz helps you return to center when you feel out of balance. It helps you focus so that you can continue to achieve your goals.
Emotional uses: Tourmalinated quartz helps to draw out dark, negative emotions so that they can be released. Use this stone when you overreact to a situation or a person and need to understand the reason for this negative reaction.
Physical uses: Black tourmaline is useful for deflecting electromagnetic frequencies emitted from cell phones, computers, and other electronic devices.